Virus-free room air in schools and educational facilities – with scientifically proven effectiveness!
  1. Applications
  2. Air cleaning dust – viruses
  3. Bacteria- and virus-free room air in schools

Virus-free room air in schools and educational facilities

Trotec high-frequency air cleaners maintain the room air in classrooms reliably free from viruses with H14 high-performance filters

A sustainable new start of regular school life absolutely requires a hygiene concept that is shown to be effective, in order to ensure that the air in classrooms is free from viruses. The coronavirus SARS-CoV-2 poses a huge challenge for teaching staff, cleaning staff, and headmasters in this respect. Even using spraying and wiping agents in a regular manner does not provide any protection against this virus which not so much spreads by smear and droplet infection, but rather directly via the room air. The protection of pupils and teachers therefore requires measures that are shown to be effective, in order to reliably reduce the risk of airborne infections.

TAC V+ with scientifically certified effectiveness!

Scientifically proven effectiveness: The TAC V+ offers what leading scientists recommend

The mobile air cleaner TAC V+ was specially designed for the purpose of virus filtration and, in this respect, has been tested for its effectiveness in the context of several scientific studies. Comprehensive studies confirm the effectiveness of the TAC V+ with its H14 filter system “made in Germany”. Learn more about the scientifically certified effectiveness of the TAC V+ ...

Classrooms require virus-free ambient conditions

Virus air purification for a safer school life

Real face-to-face teaching requires personal closeness, immediate feedback via gestures, behaviour, questions and answers. Therefore, teachers can actually not do without the direct contact on site in order to perform their educational task in a realistic fashion.

However, this direct contact always carries the risk of an infection with airborne diseases. In best case, this could be flue, in times of coronavirus it could be COVID-19. Not only since coronavirus times it has been highly recommended to take additional hygiene measures in addition to the regular ones: The air in the room and particularly the air for breathing must be kept as clean as possible and free from viruses or bacteria. This serves to protect the teaching staff, but also the pupils.

Clean air in the classroom protects teachers and students

Pathogenic viruses and bacteria are an invisible danger in every school. The pathogens can survive in the room air for several hours, presenting a potential health risk with every breath. Current studies prove that e.g. the SARS-CoV-2 virus can stay in the air for several hours while remaining infective.

The virus gets into the room air by means of aerosols that are emitted when breathing and speaking. Infectious viruses adhere to these tiny particles and the virus-carrying aerosols waft through the air due to their light weight and are inhaled unnoticed by other persons in the same schoolroom, for instance by fellow pupils or teachers.

Dividing school classes into two groups does not offer protection against virus-laden air

It is an elementary component of hygiene concepts to reduce class sizes in times of spreading epidemics. But no matter how small the groups are into which the pupils are divided: it does not prevent the virus from spreading through the air. Even using protective masks for mouth and nose does not entirely offer protection against direct ‘virus drizzle rain’ caused by “juicy” talking. Protective masks definitely do not offer protection from germ-loaded aerosols that are released into the room air while talking and breathing, where they will continue floating in the form of aerosol accumulations for several hours.

Any person talking loudly is sufficient to have thousands of aerosols spreading into the room air per minute. The number even increases when care workers and children sing. Indeed, protective masks are a first important approach to reduce the risk of a direct droplet infection with the SARS-CoV-2 virus. However, this measure does not protect from a far greater danger of infection – accumulations of aerosol particles floating freely in the room air!

Such aerosol clouds even overcome physical barriers like sneeze guard barriers or separating walls. This is how particles of aerosol can easily access the respiratory tract or the eyes. The long time aerosols stay in the air is the reason for another problem: Since aerosols spread with air currents, the room air will be mixed every time the door is opened.

Protecting teachers and pupils with a 360-degree hygiene concept

Only a coordinated all-round solution of all possible hygiene measures and additional high frequency air purification reliably and permanently reduces the risk of infection. So don’t exclusively rely on physical separation, protective masks and washing hands regularly for protection against infections. Aerosol particles in the room air don’t stick to the distance rules – as they potentially transport viruses, they are the real source of danger!


High-performance air purification creates virus-free air in classrooms

If the room air is kept free from germs and viruses, the airborne risk of infection will be minimised likewise. Trotec high-frequency air cleaners such as the TAC V+ are exactly designed to perform this task, for they efficiently and quickly reduce the intensity and time aerosol accumulations and suspended matter stay in closed rooms, creating an education facility with an extraordinarily reduced risk of infection for both teachers and pupils.

Directly at its site of installation, the mobile air cleaner TAC V+ establishes a clean air zone flooded with purified air that is filtered from viruses. Within this zone, the surrounding air nearly completely stays free of airborne germs and viruses because the TAC V+ is able to take in large volumes of contaminated room air and to carry out effective H14 high-performance air filtration according to EN 1822 (ISO 45H filter ISO 29463). Moreover, the device is able to purify room air zones in a flexibly adjustable manner with clean air that has been filtered from viruses and aerosol particles.

Effective against bacteria and virus accumulations

Trotec high-frequency air purifiers are equipped with HEPA high-performance air filters of class H14 in compliance with EN 1822 which filter out more than 99.995 % of all fine suspended particles larger than 0.1 µm with a transmittance of only 0.005 %. Or in other words: No more than five of 100,000 particles pass the H14 filter. Thanks to this unique feature, these kinds of high-performance filters are also used in operation theatres or comparable hygienically sensitive areas in order to produce clean air. In this way, you create optimum conditions to keep the room air and breathing air in classrooms, staff rooms, school administration areas, break rooms, halls and foyers free from germs and viruses in times of spreading epidemics.

Well-known viral strains such as SARS-CoV, MERS-CoV or COVID-19 have a particle size of 0.005 to 0.1 µm. Most of the time, they form accumulations with other particles (such as saliva or suspended matter), which increases their size up to 0.4 µm or 0.5 µm. These accumulations are referred to as germs and will be filtered out reliably by the Trotec H14 air cleaning filters.

All H14 HEPA high-performance air filters from Trotec meet the highest quality standards that are obligatory for bacteria and virus filtration.

  • Each H14 high-performance air filter is tested individually and is assigned its respective serial number
  • The test report is enclosed as certificate in duplicate with each H14 high-performance air filter
  • The original test certificate can be filed with the documents for the device. If required, the copy can be attached to the air cleaning device
  • HEPA H14 high-performance air filters are tested in compliance with EN 1822 and EN 60335-2-69.

Also suitable for any TAC air cleaner with H13 filter

You can also insert an H14 high-performance air filter compliant with EN 1822 from Trotec into your TAC air cleaner if you already possess a TAC device. The H14 filters are available as an accessory, e.g. for the professional air cleaners TAC 3000, TAC 5000 or TAC 6500. Simply replace the H13 filter in the filter compartment with a H14 high-performance air filter compliant with EN 1822.

Professional air cleaner with H14 high-performance air filters from Trotec

Virus-filtered clean air in music schools or at choir rehearsals

Apart from its use in public or private schools, the TAC V+ is also ideally suited for virus filtration in other educational facilities like for example music schools

Music lesson or choir rehearsal – the TAC V+ creates filtered room air that is free from viruses

The transfer of knowledge in schools requires room for personal proximity to teach and learn. This principle applies to primary and secondary schools as well as to music schools or other educational facilities. When not required for lessons, school rooms are often made available to specific associations like for example choirs to hold their choir rehearsals.

The TAC V+ is also the ideal air purification solution for such school events, in order to provide for aerosol-free room air without aerosols carrying viruses and thus without a corresponding infection risk. The high-frequency air cleaner TAC V+ draws in the ambient air near the floor and leads it through an effectively attuned filter system. The last filter stage of the latter is a unique H14 high-temperature lamellae particulate air filter with thermal filter decontamination. This H14 HEPA filter is treated thermally at regular intervals and heated to over 100 °C, which practically destroys all viruses that are filtered out. Therefore infectious viruses can no longer enter the ambient air from the filter. Instead, the TAC V+ only blows virus-free, filtered clean air back to the room in a draught-free fashion via its specially formed blowing-out tower!

In particular for musical activities and especially when singing together, the use of the TAC V+ can be an effective prophylactic measure against the spreading of aerosols carrying viruses. Since singing transports aerosols into the room via the breath in an especially wide radius and can float there in the room air for several hours. The louder the singing, the wider the spreading radius.

Only the high-frequency air cleaner TAC V+ is able to effectively and quickly reduce the dwell time and intensity of aerosol and particle accumulations carrying viruses in closed rooms and in this way create a safer environment with a substantially reduced risk of infection for teachers, music students or choir members. The virucidal effectiveness of the TAC V+ has been scientifically proven!


TAC V+ media library

The TAC V+ puts things into motion – an exceptional amount of virus-free clean air, satisfied customers and various media

In our media library for the TAC V+ you'll find some videos explaining the functional principle of the TAC V+ and its effective principle of air purification. In addition, we have compiled a large variety of different information videos describing the use of the TAC V+ in different fields of application like restaurants, supermarkets or fitness studios. Furthermore the TAC V+ media library will provide you with recommendation videos by satisfied users and with a selection of different media reports about the air cleaner TAC V+. Come and see for yourself ...


Good references are the best recommendation – see for yourself who relies on our products where the protection of employees, customers and children is concerned!

Good references are the best recommendation

Our recommendation for virus filtration in schools and other educational facilities

The Trotec high-frequency air purifier TAC V+ with H14 high-performance filtration

The TAC V+ takes in the virus-infected air and filters it with the HEPA technology, whereupon the device transmits it back into the room air

The vertical construction of the mobile high-frequency air cleaner TAC V+ serves for establishing particularly efficient clean air zones with surrounding air filtered from viruses. Setting up several devices with some distance in-between will create clean air environments with a low aerosol concentration for classrooms, school break areas, or areas for study periods. Moreover, the mobile TAC V+ can be repositioned in no time, making it possible to utilize it flexibly for a variety of rooms.

High-frequency air purification eradicates accumulations of aerosol particles in minutes

By deliberately positioning several high-frequency air cleaners of type TAC V+ or TAC XT, pupils and teachers will be way better protected from suddenly appearing droplets and accumulations of aerosol particles. These will be filtered out within the shortest time due to the high air circulation rate. Besides, areas will be permanently filled with large amounts of virus-free room air, which will significantly reduce the risk of infection in the clean air zone.

Special H14 high-performance air filter “made in Germany” with thermal self-regeneration function

This air cleaning performance is made possible by a synchronous system of efficient prefiltering and final particulate air filtration, provided by the integrated H14 high-performance air filter in compliance with EN 1822 (ISO 45H filter ISO 29463) by Trotec in a special heat-resistant version.

This special filter is integrated in the devices TAC V+ and TAC XT and can be heated up in intervals, which will inactivate all viruses remaining in the filter, serving for a 100 % decontamination of the filter.

TAC V+ and TAC XT are part of the same assembly and therefore provide the identical fan performance and HEPA air purification function. The TAC XT can, however, also be used for combined room heating, thermal decontamination of rooms and surfaces and thermal pest control. The reason for this are the additionally integrated, powerful electric heating module and enhanced programming options for various air treatment scenarios.

Thanks to their combined technology of filter and decontamination techniques, which are unique in the world, the TAC V+ and TAC XT provide safety by reducing the risk of an airborne infection in all areas with a lot of public traffic – ideally suited for schools and other educational facilities.
Example of use in a large classroom: With an area of 9 x 7 m and a room height of 3 m the depicted classroom has an air volume of 189 m³. Our recommendation: two TAC V+ placed in the room, set to a ventilation performance of 800 m³/h each reach a total ventilation performance of 1,600 m³/h and thus attain an air circulation rate > 8 per hour. In the case of a higher safety requirement, the device setting can be increased to a ventilation performance of 1,000 m³/h in each case, ensuring a total ventilation performance of 2,000 m³/h and thus an air circulation rate of > 10/h.
TAC V+ in a large classroom – installation example 1
Example of use in a large classroom: With an area of 9 x 7 m and a room height of 3 m the depicted classroom has an air volume of 189 m³. Our recommendation: two TAC V+ placed in the room, set to a ventilation performance of 800 m³/h each reach a total ventilation performance of 1,600 m³/h and thus attain an air circulation rate > 8 per hour. In the case of a higher safety requirement, the device setting can be increased to a ventilation performance of 1,000 m³/h in each case, ensuring a total ventilation performance of 2,000 m³/h and thus an air circulation rate of > 10/h.
TAC V+ in a large classroom – installation example 2
Example of use in a small classroom: With an area of 5 x 7 m and a room height of 3 m the classroom depicted has an air volume of 105 m³. Our recommendation: a centrally placed TAC V+ set to a ventilation performance of 800 m³/h, allows for an air circulation rate of approx. 8 per hour. In the case of a higher safety requirement, the device setting can be increased to a ventilation performance of 1,000 m³/h, ensuring an air circulation rate of almost 10/h.
TAC V+ in a small classroom – installation example 3

This is how you achieve maximum protection against an indirect infection:

the better the optimum airflow, the larger the room volume and the higher the air circulation and therefore the circulation rate, the lower is the concentration of aerosols in the room air, which also reduces the risk of infection.

The circulation rate and the virus-free clean air volume at the same time determine the safety level within the room.

Since even with an increased circulation rate, room air can never achieve a completely virus-free state if the room contains infected persons — you can merely establish a mixture of filtered air and permanently generated virus-carrying aerosols.

Therefore the following applies: The higher the circulation rate and the more filtered air per person is generated, the more the virus concentration in the room air is diluted. This results in a decreasing risk of indirect infections.

Recommendations for air change or circulation rates for different rooms

With the TAC, it's not just the individual details that set standards – it's also the sum of all details

High mobility – extreme versatility – large clean air capacity – high-performance filtration – filter decontamination and regeneration – value-for-money ratio

Well thought out to a detailed level, unparalleled in its entirety: With these plus points, the TAC V+ – as is scientifically proven in several studies – ensures a technically effective and highly versatile solution to reduce the risk of infection by aerosols in closed rooms.

Always stable, and also stationary on request: mobile virus protection, flexibly applicable exactly where protection is needed

The TAC is uncompromisingly flexible and can be used anywhere at any time

The extremely stable, robust and scratch-resistant metal housing was specially designed for the use in environments where many people come together, work, play, learn or celebrate. This makes it possible to use all TAC high-performance air purifiers without any installation effort anywhere they're needed.

In a flexible, mobile and modular fashion, the exact number of TAC air cleaners as requested by the hygiene concept can be provided, variably adapted to the occupancy, circulation rates, background noise, room size and room geometry.

Always stable, and also stationary on request: flexible on-site virus protection

Pure floor-standing devices without a mobility option have a decisive disadvantage: They are large, heavy – and once they have been set up, they can only be relocated with great difficulty – in other words, stationary floor-mounted appliances that often weigh 200 kg and more.

The TAC V+ and its model variants are cleverly designed: here you have the choice between a mobile, wheeled version and a stationary floor-standing version. Both versions are equally stable, while the mobile version is additionally also easily movable.

Mobile version for maximum mobility

If, for example, classrooms, offices, studios or other rooms need to be rearranged, then you are perfectly equipped with a TAC high-performance air purifier in mobile design. It can be easily repositioned or completely relocated to other rooms. By only one person and without additional installation effort. If desired, the discharge height can also be flexibly adjusted using FlowExtender attachments.

Another example: If for school parties, in theatre groups, club and company celebrations or other events a higher clean air volume is temporarily required to ensure air exchange due to the larger rooms and large number of people, this is not a problem with TAC high-performance air purifiers in mobile design, as they can be flexibly positioned in any number and at any location.

Floor-standing version for maximum safety in a fixed location

If you do not need to variably change the location of the air cleaner and air purification is to take place permanently at a fixed location, then the TAC in a stationary floor-standing housing is the optimal choice for you. 50 % smaller, 50 % lighter, 100 % more stylish and yet more robust than competitive models, this version is far easier to move than other stationary air purifiers due to the integrated furniture castors. A clean design solution for clean air on the spot!

High versatility due to individually adjustable air volumes

Another decisive advantage of the TAC is the air volume that can be individually adjusted to the room volume and desired circulation rate. Regardless of the room size or application requirements, the correct and permanently constant volume flow is always available at the touch of a button for additional safety.

The high-performance air purifiers of the TAC series are significantly smaller and more mobile than competitive devices – with a comparable performance.
Mobile TAC high-performance air purifiers with size and weight advantages over competitive models
Whether mobile (1) or stationary (2), the discharge level of all TAC high-performance air purifiers can be optionally increased by 50 cm or 100 cm by adding either one or two additional FlowExtender Silence+ elements (3).
Needs-oriented model variants with flexible discharge heights
The mobile version of the TAC high-performance air purifiers fits through every door
The mobile TAC can also be moved across floors

Large clean air capacity, high flow pressure and an optimum flow geometry

TAC high-performance air purifiers have "the power to quickly dilute the room air"

Time is the most important factor for reducing the indirect risk of infection. And we're talking about the shortest time possible for quickly and effectively diluting the infectious aerosol accumulations that are for example generated by a super-spreader, directly at their source. This requires large volumes of clean air and a high fan performance to establish an optimized flow geometry. After all, the amount of virus-free air supplied is decisive for the occurrence of infection.

This is what the TAC high-performance air purifiers TAC V+, TAC M, TAC ECO and TAC BASIC as well as the multi air handler TAC XT offer: with a large clean air volume, an optimum flow geometry and a fan performance that is more than high enough, a circulation flow is established in the room, ensuring that the virus concentration in the room air is first diluted and is then effectively filtered with cleaned air.

Only sufficiently high circulation rates or virus-free air volumes minimize the risk of infection, this is scientifically proven. Where the effective treatment of the risks of infection by aerosol particles is concerned, high circulation rates (at least 6 times the room volume or even more, if possible) and therefore large volumes of cleaned air are indispensable — despite promises to the contrary made by other providers advertising one to three air changes per hour as sufficient.

As is proven by scientific studies, effective virus filtration requires a sufficiently dimensioned volumetric flow so as to ensure that the air cleaner can provide for the number of air changes required as is guaranteed by the TAC XT, TAC V+TAC M, TAC ECO and TAC BASIC. In this context, "air change" does not refer to a complete exchange of the air, but to the proportion of virus-filtered clean air that is supplied, relating to the room volume per hour.

FlowMatic ensures constant air circulation rates at any power level even with increasing filter pollution

In order to comply with the circulation rate required by the hygiene concept, a constant volumetric flow throughout the whole operating lifetime is indispensable. However, the filter elements of every air cleaner are successively clogged over time by coarse and fine dust (e.g. caused by traffic load). This leads to an increasing counter-pressure combined with a strongly decreasing air flow rate, inevitably reducing the level of protection envisaged.

With the innovative FlowMatic control of the TAC XT, TAC V+ and TAC M you no longer have to worry about a decreasing volumetric flow or circulation rates that fall below the values required.

Just like with the cruise control of your car, the FlowMatic sensors capture the actual air flow rate values within the entire filter ladder and consecutively adapt the system performance dynamically. In this way, the air volume target value once preset remains constant at any power level! This not only increases the filter lifetime and system efficiency, but also guarantees compliance with the circulation rate required by the corresponding hygiene concept.

Air cleaners without a FlowMatic control are not able to constantly and reliably meet the requirements so as to comply with the circulation rate required. This is why the filters of such models must be checked at regular intervals and changed if necessary for safety reasons.

Air change recommendations for different rooms

High-performance filtration: H14 means maximum HEPA filter efficiency

TAC high-performance air purifiers can "effectively separate" viruses

Heat-resistant H14 HEPA high-performance filter

Exclusively H14 HEPA high-performance filters complying with EN 1822 specifications (ISO 45H filter ISO 29463) like they are used for example in the TAC V+ are able to even filter the tiny virus-infected aerosol particles (0.1 - 0.2 µm) from the room air, and this at a percentage of 99.995 %. Therefore the filter efficiency of H14 HEPA filters complying with EN 1822 is 10 times higher than that of H13 HEPA filters with 99.95 %, as used in most air cleaners!

99.995 % or 99.95 %? This may not sound like a lot, but exactly these two decimal places make the big difference between H13 and H14 HEPA filters! Virus-carrying aerosol particles are extremely tiny. And "virus filters" are designed to "filter viruses". That's why TAC high-performance air purifiers not only filter the large, but also the small-sized, highly infectious aerosols from the room air not even filtered out by FFP2 and FFP3 respiratory masks, which therefore don't offer genuine protection. Real safety is exclusively provided by an H14 HEPA filter (EN 1822)!

Scientific studies, however, qualify that a filter performance beneficial to the decay rate pursued can only be confirmed if the volume flow of the air cleaner and the flow speed in the particulate air filter are sufficiently attuned to one another by an adequately dimensioned filter surface, a property which is offered by the high-performance air purifiers TAC V+, TAC M, TAC ECO and TAC BASIC or the multi air handler TAC XT!

Extra safety: efficiency-tested air purification principle

In a continuous process, the room air that is contaminated with aerosol particles and infectious viruses is diluted and pushed towards the floor by a kind of "air roll effect". Like all TAC high-performance air purifiers the TAC V+ draws in large volumes of the contaminated air near the floor and already cleans them in the course of one air cycle with its H14 filter efficiency of 99.995 %, certified in compliance with EN 1822, reliably separating airborne germs.

The clean, virus-filtered clean air then flows back to the top of the room with a high fan performance. This air cycle continuously keeps the breathing air cleaner, especially at head height, than without filtration. The filtered, blown-out air in this process is not only free from viruses but also free from pollen and respirable, harmful particulate matter that always enters the room from outside every time you open doors or windows.

Clean, healthier air: more protection against indirect infection

With the TAC V+ you can adjust the required amount of clean air to your demands. The device, which can be configured via a touch display, can be easily programmed by "touch & play" to match individual demands, making it possible to adapt the air volume according to the individual situation at any time. And thanks to the integrated boost function, targeted short and intensive filtration can be carried out, e.g. during break times or in the case of room changes, for quick separation with a maximum air volume.

From a scientific point of view, effective virus air purification requires at least 6 air circulations per hour and a HEPA filter of class H14. Both the air cleaner and the H14 filter must therefore provide an air flow rate that is at least six times higher than the air volume of the room. In the case of a higher density of persons or a high level of physical activity, a higher circulation rate is recommended in order to ensure safety.

Large clean air capacity for effective air purification

Whether it is to be used for schools, offices, fitness studios or restaurants, the TAC V+ is ideally equipped for every requirement, because, like all TAC high-performance air purifiers, it features reserve capacities which allow for 10 or more air circulations per hour even in larger rooms.

Thermal filter decontamination – your safety airbag

Unique technology – Trotec exclusive

The thermography image illustrates this: In the process of thermal decontamination the heat-resistant H14 virus filter of the TAC V+ is heated to about 100 °C, destroying the bound microorganisms.
Fully encapsulated H14 high-temperature particulate air filter, equipped with heat-conducting metal lamellae

Only with the TAC V+ and TAC XT the special, fully encapsulated H14 high-temperature lamellae high-efficiency particulate air filter is treated thermally at regular intervals. Explicitly for this purpose, this filter has been developed and interspersed with special, heat conducting metal fins.

This thermal filter decontamination technology offers you several benefits at the same time! By heating the filters, the proteins of the viruses filtered out, which are relevant to the infectiousness, are denatured, and the viruses are practically destroyed. Therefore infectious viruses can no longer enter the ambient air from the filter, for example by improper handling during a filter change. Furthermore, bacteria, germs and other microorganisms are additionally destroyed. Filter decontamination at temperatures much lower than 100 °C would not be sufficient here. It's not without reason that drinking water containing germs, for instance, should be boiled, i.e. heated to about 100 °C, for at least three to five minutes before use.

All this means extra employee protection can be ensured during operation and also when the filter is changed! You could say, it's the "virus airbag" that provides for more safety. It is there when you need it – and as long as nothing happens, you won't even notice it.

Scientific studies substantiate the usefulness of thermal filter decontamination for ensuring effective virus filtration. Professor Christian Kähler, for example, points out: "To ensure a maximum degree of hygiene and a longer lifetime in continuous operation, the H14 filter should be heated to approx. 100 °C every day for about 15 minutes, in order to prevent the formation of biofilms, bacteria and fungi without using harmful chemical additives or UV-C radiation."

We recommend carrying out thermal decontamination once a week. Only in hygienically sensitive areas with a low air temperature and very high humidity level should thermal decontamination be carried out once a day. Thermal decontamination of the filter carried out on a weekly basis requires only 1.0 kW of additional energy per week and will not increase the room temperature.

The decisive plus in terms of safety and hygiene for only 28 cents per day, which moreover pay for themselves

The on-demand thermal filter decontamination offers the decisive plus in terms of safety and filter hygiene, while the additional energy input required is negligible. Even with thermal decontamination carried out daily, the costs only amount to 1 kWh, i.e. 28 cents per day of use. And if thermal decontamination is carried out once a week, the costs are just under €15 per year.

Because thermal decontamination also increases the filter lifetime, a new filter has to be purchased less frequently. This saving means that you benefit from the added value of thermal decontamination – maximum filter safety and filter hygiene – practically free of charge!

Thermal filter regeneration – for optimum filter hygiene and a prolonged filter lifetime

No filter humidity, no filter mould or odour, and at the same time a much longer filter lifetime

Thermal filter decontamination and thermal filter regeneration

Aerosol separators and virus air cleaners take effect where many people are present in narrow spaces over a longer time and exhale larger quantities of aerosols. Aerosols, whether virus-carrying or not, for the greater part consist of micro droplets – pure water, that is. Customary H14 filters may be able to "catch" these humid aerosols, however, they also catch additional problems. Since the increasing humidity in the filter causes it to start fouling more quickly. As a result, the filter resistance increases, constantly reducing the clean air volume emitted and thus significantly reducing the filter lifetime. The fast fouling of filters at high loads of aerosols has been scientifically proven by field tests.

Moreover, the constantly high level of humidity favours the formation of filter mould or biofilms. Instead of eliminating a hazard, others may therefore be created. For example, a decreasing flow rate, shorter filter lifetimes and mould on the filter. But since the filter is heated to more than 100 °C at regular intervals, the ingress of moisture, fast sooting and filter mould are not a problem with the TAC V+ and TAC XT. Since the humidity is fully discharged again in the course of the thermal regeneration cycle, not only drying the filter at regular intervals, but additionally regenerating it again via its self-cleaning function.

With this innovative procedure the filter resistance remains low and the clean air flow remains at a constantly high level for a considerably longer time. Consequently the lifetime is longer than that of other filter systems without thermal regeneration and decontamination. This is also confirmed by current studies, which sum up as follows in the context of an examination of the TAC V+ and its H14 filter which complies with the specifications of EN 1822 (ISO 45H filter ISO 29463) and which features a self-cleaning function: "Therefore it is to be expected that this filter can have a lifetime of several years, depending on the load."

Maximum filter hygiene for just 28 cents per day, which practically pay for themselves

Thermal decontamination and regeneration of the filter requires only 1 kWh of energy. Even if thermal decontamination is carried out once a day, the costs amount to approx. 28 cents per day of use, and if thermal decontamination is carried out once a week, the costs amount to just under €15 per year. At the same time, however, the unique thermal filter decontamination and filter regeneration offers you the decisive added value in terms of safety and hygiene over the entire filter lifetime. And all this is basically at zero cost, because the longer filter lifetime achieved by regular thermal filter regeneration means that a new filter does not have to be purchased as often – this saving means that you benefit from the added value of thermal decontamination – maximum filter safety and filter hygiene – practically free of charge!

Low-noise: Hard to believe, hardly to be heard

The TAC V+ is an air cleaning revolution of the silent kind

Sound protection hood to ensure silent operation

The task of qualified high-performance air purifiers is to make the utilization of interior spaces possible again – and not to make it more difficult! Nevertheless, without large volumes of clean air, the risk of infection cannot be minimized!

When aerosol particles are separated or viruses and bacteria are filtered out, high air circulation rates between 6 and 8 per hour are required, and in the medical sector even 12- to 15-fold air circulation rates per hour. It is important to note that the virus-free room air volume, which determines the risk of infection, results from the circulation rate and the room volume. Without these large air circulation rates, spontaneously occurring aerosol clouds cannot be reliably and quickly diluted and filtered out.

Therefore, even in smaller rooms of 45 m² you already need amounts of clean air from 700 m³ to 1,500 m³, which requires a fan with a correspondingly high ventilation power. In particular, to establish an optimum air flow and air routing in the room. In addition to the flow geometry, filter efficiency and long filter lifetimes, however, an acceptable noise level, in spite of the large air volumes and the high fan performance, is desirable.

This is why one of the top priorities in the design of the TAC V+ was a low noise emission

For noise sensitive areas such as schools, offices or medical practices we recommend using the optional sound protection hood by means of which the sound level experienced subjectively can be again reduced by up to 50 %! In workshops, packing stations or discotheques, etc. the use of the sound protection hood usually is not required.

With an optional H14 Ultra-HighFlow filter and an installed sound protection hood, the TAC V+ for example merely generates approx. 38 dB depending on the power level. For comparison: A customary laser printer already generates a sound level of approx. 50 dB during operation.

Well thought out to the detail, unparalleled in its entirety – all advantages of the TAC V+ at a glance

High versatility due to mobility

Easy set-up and moving instead of cumbersome set-up and conversion – decisive advantages over stationary, large and heavy floor-mounted appliances: versatility. Thanks to the carriage design, the "Plug & Play" device can be used for both mobile and stationary applications – simply set it up flexibly exactly where protection is needed. For the installation sites and application purpose can change again and again, and effective hygiene concepts therefore require a high degree of flexibility. The TAC is a true mobile device, and therefore always quick and easy to set up exactly where protection is needed.

High versatility due to individually adjustable air volumes

Another decisive advantage of the TAC are the air volumes that can be individually adjusted to the room volume and desired circulation rate. Regardless of the room size or application requirements, the correct and permanently constant volume flow is always available at the touch of a button for additional safety.

Significantly increased health protection also against fine dust

The TAC high-performance air purifier from Trotec offer you, your employees, customers, clients, patients and pupils a high level of protection against indirect infection by aerosol particles. In addition to viruses and bacteria, also respirable and harmful particulate matter (e.g. caused by road traffic) as well as pollen are reliably filtered from the room air.

More safety – scientifically tested and recommended

The effectiveness of the room air purifier TAC V+ has been confirmed in several independent scientific studies carried out by leading national and international institutes.

Large clean air capacity – high pressure

Up to 2,200 m³/h of clean air filtered free from viruses and bacteria by a high fan performance for optimum air circulation, air flow and frequent air circulation. Proper air flow and routing are an absolute must when you want to ensure a high degree of safety. In particular the high maximum air flow rate (boost mode) is ideally suited for quick separation (short and intense filtration) in break periods or in the case of room changes.

Effective high-performance filtration with the maximum HEPA filter class, certified in compliance with EN 1822

In the TAC V+, TAC M and TAC XT, fully encapsulated H14 metal fin high-temperature filters "made in Germany" with flow-optimized high-tech filter material are used, which are specially developed for Trotec. Each quality filter is tested and certified individually.

Optional: H14 Ultra-HighFlow filter

For 66 % more H14 air volume — with an energy consumption that is reduced by up to 30 % and a noise emission that is lower by up to 8 %.

FlowMatic control: Constant circulation rates in all power levels by a constant volumetric flow to provide for increased safety

The sensor-supported FlowMatic control in the TAC V+, TAC M and TAC XT works like the cruise control in the car: Even when coarse and fine dust increasingly pollute the filter you don't have to be concerned about a decreasing air flow rate or about values falling below the required air changes.

The system performance is adapted continuously and dynamically, ensuring that the air volume target value once set is kept constant at any power level! For increased safety, longer filter lifetimes and a substantially higher system efficiency.

Exclusively with TAC V+ and TAC XT: Thermal filter decontamination for more safety

Just like the airbag in the car – you hardly ever need it, but it's important that it's there! Reliable inactivation of the viruses and bacteria by heat (15 minutes at about 100 °C) provides an important added value where hygiene and safety are concerned. This is recommended by leading scientists to ensure safe continuous operation.

Thermal filter decontamination is freely programmable and is effected in a fully automatic fashion, e.g. outside business hours or school hours.

Thermal decontamination carried out on a weekly basis requires only 1.0 kWh of additional energy per week and will not increase the room temperature due to the limited energy input and the short treatment time.

Exclusively with TAC V+ and TAC XT: Thermal filter regeneration for more hygiene

Automatic self-cleaning of the filter to provide for a longer filter lifetime and to prevent bacteria, mould, biofilm and the formation of odours resulting therefrom.

The process of filter regeneration takes place at about 100 °C in parallel to the thermal decontamination process and is recommended from a scientific point of view, since most bacteria and microorganisms are only inactivated at a temperature of approx. 100 °C. It's not without reason that drinking water containing germs should be boiled, i.e. heated to approx. 100 °C, for at least three to five minutes before use.

Thermal filter regeneration: To provide for longer filter lifetimes and an improved filter hygiene, and to prevent filter odour.

Fully automatic operation by flexible programming

Thanks to the fully programmable and updateable touch display, the TAC V+, TAC M and TAC XT can be adapted individually to your operating hours and rest periods, so that you no longer have to worry about anything.

Low noise emission

The most silent high-performance air purifier in relation to the air flow rate / device size.

Robust design for professional use

Extremely robust, stable and scratch-proof metal housing specially designed for operational environments where many people are staying, working, playing, learning or celebrating. Optionally also available as tamper-proof versions for schools, daycare centres, etc.

TAC V+ and TAC XT: low running costs

The running costs of the TAC V+ and TAC XT are very low. Firstly, the average power consumption for the basic operation of the device (fan, electronics, etc.) is only 160 Wh. Some competition models may have a nominally lower consumption, but given their high clean air capacity, the TAC V+ and TAC XT are extremely cost-effective in terms of cost per cubic metre of virus-filtered clean air.

Secondly, the on-demand thermal decontamination with simultaneous filter regeneration not only offers the decisive plus in terms of safety and filter hygiene – but also enormous savings potential! Activated once a week, filter decontamination generates additional energy costs of just under €15 a year (approx. 1 kWh/week). At the same time, filter hygiene is improved and filter lifetime increased. A new filter has to be purchased less frequently, and this saving means that you benefit from the added value of thermal decontamination – maximum filter safety and filter hygiene – practically free of charge!


Besides different colours, the TAC V+ is also available in the model variants TAC M and TAC ECO – our best recommendation if you want to do without the full equipment of the TAC V+, but not without effective H14 HEPA virus filtration from Trotec "made in Germany". And for extended fields of application beyond air purification, we developed the multi air handler TAC XT.

Moreover, there are special solutions available for you, like for example the TAC V+ in stainless steel version or the wall and ceiling model TAC V+ Dual for large halls.

Quick comparison TAC XT TAC V+ TAC M TAC ECO
HEPA filter (EN 1822) HighFlow H14
Heat Resistant
HighFlow H14
Heat Resistant
HighFlow H14 Minipleat H14 standard
Filter monitoring
FlowMatic volumetric flow control
Thermal filter regeneration
Thermal filter decontamination
Heating unit 18/27 kW integrated
Control panel Touch display, programmable Manual switches
Quick comparison TAC XT TAC V+ TAC M TAC ECO
HEPA filter (EN 1822) HighFlow H14 Heat Resistant
HEPA filter (EN 1822) HighFlow H14
HEPA filter (EN 1822) minipleat H14 standard
Filter monitoring
FlowMatic volumetric flow control
Thermal filter regeneration
Thermal filter decontamination
Heating unit 18/27 kW integrated
Control panel: touch display, programmable
Control panel: manual switches
Model variants TAC M and TAC ECO
Wall and ceiling model TAC V+ Dual
TAC V+ in different colours and stainless steel
TAC V+ with scientifically certified effectiveness!

Scientifically proven effectiveness: The TAC V+ offers what leading scientists recommend

The mobile air cleaner TAC V+ was specially designed for the purpose of virus filtration and, in this respect, has been tested for its effectiveness in the context of several scientific studies. Comprehensive studies confirm the effectiveness of the TAC V+ with its H14 filter system “made in Germany”. Learn more about the scientifically certified effectiveness of the TAC V+ ...


Air cleaner FAQ for virus filtration

Learn more about the technical possibilities of virus air filtration

You want to know which technical aids offer effective protection against viruses in the room air? Do you have any questions with regard to the different cleaning methods offered on the market, their functional principle and their suitability for virus filtration? Visit our air cleaner-FAQ for virus filtration – Here you'll find answers to all of your questions with regard to air purification, virus filtration, standards as well as filter classes and of course the high-performance air purifier TAC V+ ...


What's the point of air purification? All you need to do is ventilate properly, right? Pros and cons:

Airing seems to be the order of the day in Corona times. This recommendation is continuously propagated by various parties and presented as the most effective measure to reduce the risk of airborne infection indoors. In fact, ventilation can reduce the concentration of virus-laden aerosols in the room air. However, only if all conditions are met, which is often not the case. Airing versus air filtration – all facts at a glance: On our info page on the subject of "Airing or air purification" we have compiled the most important aspects of the technical possibilities of room ventilation for you. Learn everything you need to know about intensive airing, cross ventilation, ventilation duration, on-site requirements, climatic conditions and effectiveness – here you can see for yourself ...

Airing or air purification? Everything you need to know on our info page ...

Even in times "without corona", the TAC V+ will still be a precious investment as a universal guarantor of clean air

Virus filtration plus keeping the air free from particulate matter – completely pollution-free breathing air

Particulate matter pollution presents a permanent hazard to our respiratory organs. In addition, fine dust is also suspected of being able to transport the coronavirus and aggravate the health consequences of a viral infection. Therefore it's all the more reassuring to the users of the virus air cleaner TAC V+ that it can be both at the same time: a demonstrably effective virus filter and basically a high-performance air cleaner. Today this provides you with a tried and tested air cleaner which neutralizes virus-carrying aerosol particles and bacteria in the room air – and at the same time you can benefit from maximum protection against harmful particulate matter pollution in your rooms – even for your life "without corona". More information regarding the fine dust issue can be found here ...

More information regarding the fine dust issue can be found here ...

Trotec exclusive: acrylic glass shield with an all-round aerosol protective edge
More protection with all-round aerosol protective edge
Less protection without all-round aerosol protective edge
Trotec exclusive: acrylic glass shield with an all-round aerosol protective edge

360-degree hygiene solution for optimum all-round protection

Your safety plus: TAC V+ air cleaner – plus acrylic glass shields with an all-round aerosol protective edge

Unlike conventional transparent protective screens, the acrylic glass shields exclusively available only at Trotec offer you significantly more protection against flying droplets and aerosols suspended in the room air thanks to their unique all-round aerosol protective edge.

The high efficiency yielded by the combination of a high-performance air purifier TAC V+ and installed acrylic glass shields from Trotec "made in Germany" has been scientifically proven. Our recommendation as an optimum all-round protection solution for schools, offices, retail and many more ...

We would be happy to advise you personally and calculate the best leasing offer for you

Work more securely with our TAC business leasing from €49 per month*

More freedom through flexible financing at top conditions is made possible by our TAC business leasing with instalments from €49*. We would be happy to advise you personally and calculate the best leasing offer for you: +49 2452-962-730      * plus VAT with 0 % down payment. For traders only

* We will automatically check whether there are federal or state funding programmes available for your application area.


Trotec solutions do not only allow you to generate clean and purified air, but also make the quality of the room air visible!

Triple indicator for healthy room air: Our BQ air quality measuring devices indicate all important values

Particle measuring device BQ30 for air quality monitoring

The Air quality monitor BQ30 should not be missing on any teacher's desk or in any open-plan office because this environmental monitoring station shows you the most important values for healthy room air at a glance: In addition to the current CO2 load and the prevailing climate data and the particulate matter pollution in particle size PM2.5 or PM10 are shown to you.

The CO2 pollution is an important indicator of required ventilation measures and the fine dust particle sizes determined also include pollen, a helpful feature to monitor the air quality for allergy sufferers! In rooms with a large number of persons, CO2 Traffic lights can serve as a means for rough-orientation to indicate whether the air quality is good or poor, as carbon dioxide (CO2) is a reliable indicator of an air change.

In addition to the BQ30 Trotec's range of products includes further professional particle counters such as the PC200 or the PC220. Our particle counters cannot only be used for inspecting the air quality, but to test filter systems as well, for example.

Note: Neither the degree of air pollution caused by particulate matter of the particle size PM2.5 nor the CO2 pollution in the room tells you anything about the infection risk! None of the two values are a measurand of the risk of infection, since there is no correlation between CO2 or PM2.5 concentration and viral load. Learn more about this subject area and several others with regard to virus filtration, filter classes, filter standards and other important operating figures – summarized in our air cleaner-FAQ for virus filtration ...

With the high-performance air purifiers of the TAC series Trotec offers professional solutions for aerosol-free filtered clean air quality in larger rooms such as schools, restaurants, offices, medical practices or hotels. By providing virus-filtered clean air, the TAC V+ ensures a high level of protection for employees and customers, teachers and students, staff and patients in commercial environments and public facilities. But even in smaller rooms you can benefit from our expertise in air purification and virus filtration:

AirgoClean® – the synonym for clean breathing air: unpack, switch on, breathe freely

With AirgoClean® you have a wide range of excellent Trotec air purification units at your disposal. First and foremost the AirgoClean® One – our number 1 high-performance air purifier for virus-filtered clean air in exclusive environments, medical practices and law firms. The air cleaners of the AirgoClean® brand stand for effective filter performance, high user comfort and proven Trotec quality – reliable protection against room air polluted with house and fine dust, bacteria, airborne viruses or pollen. Our large selection of air cleaners offers the ideal AirgoClean® device for every need ...

AirgoClean® – the synonym for clean air – unpack, switch on, breathe fresh air

Other application areas for virus filtration and air purification with high-frequency air cleaners from Trotec:

  • Comprehensive H14 HEPA solution for meeting the high hygiene and infection control requirements in vaccination centres

    Pandemic periods, such as the current coronavirus pandemic, require exceptionally flexible measures to contain the spread of the COVID-19 pathogen SARS-CoV-2. The best way to reduce the risk of a coronavirus infection in stationary and mobile vaccination centres is to use TAC XT high-performance air purifiers. With its variable equipment variations (surface disinfection, heating) the mobile...

    Additional information
  • Infection control for offices and public institutions

    The German Federal Ministry of Labour and Social Affairs (BMAS) calls for more working from home to help fight the coronavirus pandemic. However, this is not possible in many companies for operational reasons. “Almost 60 percent of employees in Germany cannot work from home”, says Marcel Fratzscher, President of the German Institute for Economic Research (DIW). In order to protect employees mostly...

    Additional information
  • Infection control for courts, administrations and plenary halls

    What are public authorities, courts or administrations doing to remain capable of acting in the current coronavirus pandemic? What technical infection control solutions are used, and how, to continue normal operation and enable hearings and meetings in courtrooms and plenary halls? Our best practice example for courts, judicial authorities and municipalities provides information on how staff and...

    Additional information
  • Infection protection in schools and educational facilities

    This makes it easy for infectious diseases like COVID-19 to spread in classrooms. While suitable high-performance air purifiers and interior ventilation systems minimize the risk of an airborne infection with the coronavirus SARS-CoV-2, the acrylic glass partitions with an aerosol protective edge at the tables or desks allow for combined protection against flying droplets and aerosols.

    Additional information
  • Germ-free room air in restaurants and canteens

    The shutdowns as a result of the coronavirus crisis brought an existential threat to restaurant proprietors in particular. Reserves are exhausted, time is running, and with the regulations gradually being relaxed, the question remains on how to set up efficient hygiene concepts to protect personnel and guests. An important component for hygiene to prevent airborne infections is to keep the room...

    Additional information
  • Bacteria- and virus-free room air in medical practices

    The one who sees the doctor in times of a spreading influenza, of gastrointestinal infections or similar infectious diseases usually has to share the waiting room with sniffling, coughing or even febrile persons sitting next to him. Going to the dentist or the eye specialist also provides the same risk potential if e.g. a large part of the population is affected by an influenza epidemic. Not a...

    Additional information
  • Bacteria and virus-free room air in daycare centres

    In kindergartens and similar childcare institutions of the childcare sector, infectious diseases are not uncommon. In addition to popular childhood illnesses such as mumps, measels, rubella, chickenpox, whooping cough and the fifth disease, diarrhoea and infections of the upper respiratory tract are also common. With the coronavirus SARS-CoV-2, another infectious disease entered our lives which is...

    Additional information
  • Room air filtered from viruses in hotels and conference centres

    The hotel and restaurants sectors still are particularly hit very hard by the current coronavirus impacts. Nearly all hotels had to be closed first, and will probably be suffering the longest time from the impacts after the pandemic. As long as the fear of an infection with the coronavirus is higher than the usual convenience provided by the hotel sector, many guests will cancel or postpone any...

    Additional information
  • Germ-free room air with H14 virus filtration in offices and public spaces

    Open-plan offices, museums, public institutions and buildings of public authorities share one common problem: In areas with high public traffic, there is always the risk of pathogenic suspended matter, allergens, spores, bacteria and viruses spreading through the room air. Whether to extend your ID card in the local citizen service, for the registration or de-registration of a vehicle in the road...

    Additional information
  • Virus-free room air in discos and clubs

    Clubs and discotheques are struggling with the consequences of the coronavirus crisis in many places. While restaurants and independent shops have reopened, the decision whether to open or not is still pending for clubs and discotheques – probably because they are often considered to be potential virus hotspots. This aspect in particular requires efficient hygiene concepts, allowing operators to...

    Additional information
  • Air cleaner with H14 virus filtration for gyms and therapy rooms

    Fitness studio operators, licenced physiotherapists and other physiotherapeutic workers are too familiar with the problem: Depending on season and temperature, there is stagnant air in the training or treatment room, even with the ventilation system activated. The breathing air is additionally polluted with suspended matter, e.g. dust particles, nitrogen oxides and formaldehyde, but also with...

    Additional information
  • Virus-free room and breathing air in supermarkets, DIY stores and shops

    New infectious diseases such as influenza A/H5N1 (avian flu) or COVID-19 (coronavirus) spread all over the world in an irregular, yet continuous manner. The impacts on the diverse areas of daily life are rather drastic. Many salespersons who are not systemically relevant are forced to close their shops in times of highly infectious pandemics in order to prevent a newly-discovered virus from...

    Additional information
  • Virus-free room air in logistics centres and production areas

    Current coronavirus outbreaks in post and parcel distribution and processing centres offer an impressive demonstration of how fast and radical procedures in the production and logistics sector can be interrupted if only one infected person is present among the entire staff, and if no effective measures have been taken to prevent airborne infections within the working zones. An important component...

    Additional information
  • Virus-free room air in the meat industry

    Coronavirus outbreaks in slaughterhouses and various meat-processing factories are a poignant reminder of how fast production procedures and whole companies can grind to a halt by infection chains if only one infected person is present among the entire staff, and if no effective measures have been taken to prevent airborne infections within the working zones. An important component for hygiene to...

    Additional information
  • Dust-free construction sites thanks to air cleaners

    Construction sites are dusty places. Particularly when it comes to chiselling, grinding, cutting and milling operations or the removal of old plaster or tiles. For the most part, craftsmen cope with this by using breathing protections, and they have to accept a considerable cleaning effort. A more effective and healthy approach is the use of air cleaners, which extract the dust before it collects...

    Additional information
  • Cleaning of ventilation and air conditioning systems

    Clean room air at the workplace and in public buildings is not only legally required, it also contributes significantly to daily well-being. Cleaning air conditioning systems regularly helps to ensure that the air remains pure. To filter out suspended particles as required, service companies will find the suitable air cleaner with a HEPA filter for your system.

    Additional information
Trotec/89