Infection control concept for offices
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  2. Air cleaning dust – viruses
  3. Infection control for offices and public institutions

Scientifically recommended infection control for offices and public institutions

Working from home is not possible in your company? Acrylic glass partitions with an aerosol protective edge and high-performance air purifiers prevent viruses and droplets from flying around in the company

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 working in offices in the best possible way from an infection with the COVID-19 pathogen, the BMAS recommends the use of technical solutions for infection control.

While suitable high-performance air purifiers such as the TAC V+ of the TAC series or the AirgoClean® One of the AirgoClean® air cleaner series as well as high-performance air purifiers integrated in interior ventilation systems minimize the indirect risk of infection through contamination of the entire room air with SARS-CoV-2 viruses, innovative acrylic glass partitions with aerosol protective edge at the tables enable effective protection against the direct transmission of an infection from person to person through droplets and aerosols.

The protection concept for offices is based on four essential elements

Scientifically recommended infection control for office workstations in times of pandemic

Making working from home mandatory would “undoubtedly” fall short of the collaborative efforts of the social partners in terms of effectiveness, leading business representatives warn. In many economic sectors, great efforts have already been made for some time by companies and employees to protect employees at the workplace in the best possible way from the risks of infection with the COVID-19 pathogen SARS-CoV-2. Technical infection control solutions have been implemented, the effectiveness of which has been scientifically proven. One proponent of technical solutions in the fight against the coronavirus pandemic is Prof. Dr. Christian Kähler. The world-renowned scientist has been researching the generation, spread and evaporation of aerosol particles in space at the University of the Federal Armed Forces in Munich for more than 25 years. Commissioned by Trotec, Prof. Kähler has researched a synchronized protection concept for office workstations and schools ensuring that people in closed rooms are reliably protected against an infection with the coronavirus. The study results confirm that the combined use of TAC high-performance air purifiers and innovative acrylic glass partitions with aerosol protective edge reduce the risk of infection at the workplace significantly.

The protection concept for office workstations is based on four essential elements:

1. Partitions with an aerosol protective edge for separating breathing zones
Transparent protective screens between the workplaces of people sitting opposite or next to each other prevent employees from becoming infected with the COVID-19 pathogen over short distances through droplets or aerosol particles released when breathing, talking, coughing or sneezing. The crystal-clear partitions with aerosol protective edge provide reliable protection against larger droplets and also prevent the aerosols exhaled at the workplace from overcoming the partition and floating to the adjacent workplace.

2. High-performance air purifiers provide virus-free air for working and breathing
Virus-laden aerosol particles in the room air are considered to be the main carrier of the SARS-CoV-2 virus. By use of a high-performance air purifier of the TAC series or AirgoClean® One, these tiny particles (0.1 - 5 micrometres) are reliably removed (99.995 %) from the room air in next to no time. The air cleaner filters the room air and minimizes the risk of an indirect infection since the virus load in the room is kept at a constantly low level. Intense shock ventilation is no longer necessary. As a result, the office spaces remain consistently warm and ventilation is only required if the CO2 level is too high, which can cause fatigue among the employees and affect their ability to concentrate. Ventilation can be done during the breaks in order to exchange the stale room air for fresh air.

3. Medical masks for safe moving around in the building
FFP2 / N95 / KN95 masks or medical face masks are to be worn in all areas of the company where employees move around freely. Compared to homemade face coverings, FFP2 / N95 / KN95 masks ensure a much higher level of protection, as droplets and aerosol particles are reliably filtered out of the air stream by the mask material.

4. CO2 traffic light for controlled airing behaviour
A high CO2 content affects our well-being and ability to concentrate. The CO2 concentration in the room can also be used as an indicator of a high aerosol concentration. Using the convenient air quality monitor BQ30 you can always keep an eye on the CO2 room air concentration. This way, you can improve the room climate by supplying outdoor air if necessary.

Functional principle of the acrylic glass shield with an all-round aerosol protective edge

The all-round aerosol protective edge of the acrylic glass shield from Trotec ensures that the aerosol particle stream swirls around the edge. As a result, the aerosol particles remain in the area of the infected person for a longer time and mix with the air before they are diluted and separated by the room air cleaner. When aerosol particles hit a protective screen that is NOT equipped with a protective edge, the particles will flow unhindered over the edge of the screen. This allows the potentially infectious aerosol particles to spread to the adjacent workplace.

Fig. 1a: Conventional setup of tables in an office. The desks are too close to each other and the employees are not protected by means of protective screens and an air cleaner.
Conventional setup of tables in an office. The desks are too close to each other and the employees are not protected by means of protective screens and an air cleaner.
Fig. 1c: Conventional setup of office tables in front of walls. The employees are sitting in a row too close to each other and are not protected by means of protective screens and an air cleaner.
Conventional setup of office tables in front of walls
Fig. 1b: Table setup recommended in the protection concept. The tables are positioned further apart and the employees are protected by means of protective screens and an air cleaner.
Table setup recommended in the protection concept. The tables are positioned further apart and the employees are protected by means of protective screens and an air cleaner.
Fig. 1d: Tables set up in front of walls as recommended in the protection concept. The employees are protected by protective screens and an air cleaner.
Tables set up in front of walls as recommended in the protection concept. The employees are protected by protective screens and an air cleaner.

Implementation of the hygiene concept in office spaces and at office workstations

When arranging the workstations, the minimum distances should be observed in order to achieve the best possible protection against a SARS-CoV-2 infection. The available space must be optimally used and the distances and walking routes adapted accordingly. If rooms are used by several people at the same time, ten square metres must be available for each person. The current occupational safety and health rules require that, if the minimum distances and occupation rules cannot be complied with, at least medical face masks are to be worn.

Positioning of acrylic glass partitions between the employees

The partitions with an all-round protective edge are installed between people sitting next to or opposite each other (fig. 1b).

Positioning of the TAC or AirgoClean® One high-performance air purifier

The air cleaner can be positioned anywhere in rooms sized up to 80 m². For larger rooms, the number of air cleaners has to be adapted to the room volume to be filtered. Due to their small dimensions and footprint, Trotec’s air cleaners for virus filtration do not affect business operations. The volumetric flow of the room air cleaner must be at least six times the room volume. Whenever required or after business hours, the volumetric flow of the device can be set to maximum output for a short time. Additionally, we recommend airing the room for a short time to reduce the CO2 concentration. Alternatively, the room can be aired during work breaks. This does not impair the filter performance of the air cleaner.

Fig. 2a: Setup with tables of 4 in the dining area (e.g. canteen) not recommended.
Setup with tables of 4 in the dining area (e.g. canteen) not recommended.
Fig. 2b: Setup with long tables for dining areas recommended in the protection concept. The people are protected by protective screens and an air cleaner.
Setup with long tables for dining areas recommended in the protection concept. The people are protected by protective screens and an air cleaner.

Implementation of the hygiene concept in the company canteen

If possible, small tables should be avoided for lunch (fig. 2a). Instead, we recommend a setup with long tables with a sufficient distance between the people sitting opposite each other (fig. 2b).

Positioning of acrylic glass partitions between the people

Transparent protective screens with an all-round aerosol protective edge must be installed between the people eating. As an alternative, a row of tables can also be positioned against a wall.

Positioning of the TAC or AirgoClean® One high-performance air purifier

High-performance air purifiers are required to reduce the risk of indirect infections. Depending on the room situation and size, the use of several devices is recommended to ensure at least a 6-fold room air circulation per hour with highly efficient HEPA air purification in the entire catering area. People working at the serving counters must also be protected by partitions with an aerosol protective edge. Additionally, the staff working at the counters must wear FFP2/3 mask to protect both themselves and the employees to the greatest extent possible.

Fig. 3a: Typical setup of conference tables no longer recommended in times of pandemic.
Setup of tables in a conference room not recommended
Fig. 3b: Positioning of air cleaners and protective screens recommended in the protection concept for a U-shaped table setup.
Positioning of air cleaners and protective screens recommended in the protection concept for a U-shaped table setup.

Installation in conference and meeting rooms

In conference and meeting rooms, a U-shaped arrangement of tables is recommended (see fig. 2).

Transparent protective screens with an all-round edge must be installed between the seats to minimize the risk of direct infections. The air cleaner should be positioned in the middle of the table arrangement to ensure optimum protection against an indirect infection. To improve the room air, the CO2 concentration should be permanently monitored with a particle measuring device BQ30 in order to supply outdoor air as required. Intense ventilation with a strong decrease in temperature is no longer necessary, since the viruses are removed by the air cleaner.

FFP2/3 masks must be worn on all corridors inside the building as these premises cannot be secured otherwise. Simple face masks and surgical masks do not provide sufficient protection against aerosols.

Acrylic glass countertop with an all-round aerosol protective edge
Acrylic glass countertop with an all-round aerosol protective edge
Acrylic glass countertop with an all-round aerosol protective edge

Safe customer contact in the reception area:
Acrylic glass countertop with an all-round aerosol protective edge

In the reception area of your company, the infection risk is particularly high. This is where customers, suppliers and visitors are greeted and documents, shipped goods or information are exchanged. Direct contact with a large number of people is therefore unavoidable. Especially for these situations with an increased risk of infection, we recommend using the visually attractive countertop with an all-round aerosol edge. The transparent partition protects both the visitors and the staff working at the reception in the best possible way against flying droplets and aerosols.

Uncomplicated installation, high level of protection

Thanks to its well thought-out design, the pleasantly lightweight countertop can be installed and repositioned in no time – without any installation effort. There's not easier and more flexible way to protect your employees in direct customer contact.

Our countertops are available in three standard sizes (other sizes on request):

  • SMALL (H: 750 x W: 595 mm)
  • MEDIUM (H: 750 x W: 795 mm)
  • LARGE (H: 750 x W: 995 mm)

The 26 cm wide and 12.5 cm high hatch enables an easy exchange of goods, money or documents – while at the same time a high level of protection against larger droplets and smaller aerosol particles is ensured.

BQ30 air quality monitor

Regular ventilation and CO2 traffic lights

In addition to permanent air purification, the employees are required to open the windows in the office premises for shock ventilation from a CO2 value of 1000 ppm. If room air cleaners are used, this is not absolutely necessary for reducing the aerosol concentrations. However, it also helps to prevent high CO2 levels in the room air, which can affect our well-being and ability to concentrate. The CO2 content is monitored as required (depending on the number of employees in the room) using the air quality monitor BQ30.

Infection control for offices and office workstations

All information in the “Guide to protective screens for schools, offices and businesses”

In the “Guide to protective screens for schools, offices and businesses”, available as a PDF, you can see for yourself how comparatively easy it is to implement a safe hygiene concept in your company. The guide contains how-to information for implementing the hygiene concept for closed rooms recommended by Prof. Christian Kähler, scientifically proven facts on the risks of infection indoors, and technical solutions to reduce the risk of infection at office workstations to a minimum. You can download the PDF here:

Click here to go directly to the Guide to protective screens for schools, offices and businesses
Click here to go directly to the scientific protection concept for offices

Working from home not possible?
Protect your employees from infections in the office!

Everything has changed since COVID-19. We are faced with a different kind of everyday life. However, working remotely from home is not an alternative for all companies or departments. Are there solutions to make work in the office as infection-proof as possible?

Click here to find out about a scientific protection concept for offices, which improves protection against the risk of infection.

The protection concept fulfils the SARS-CoV-2 occupational safety and health standards:

Read an excerpt from the occupational safety and health standards of the Federal Ministry of Labour and Social Affairs here:

Special technical measures

1. Workplace design
Employees shall keep a sufficient distance (at least 1.5 m) from other persons. Where this is not possible even through work organisation measures, alternative protective measures shall be taken. Transparent partitions are to be installed when there is public traffic and, if possible, also to separate workplaces where there is otherwise no protective distance.

Furthermore, the protection concept does not violate the occupational safety and health rules regarding the room temperature – as is the case with shock ventilation, for example – since the temperature in the classroom does not drop below 19 °C when air cleaners are used.

Buy

School protective wall Acrylic glass with aerosol protective edge SMALL 800 x 69 X 500 show in Trotec online shop

School protective wall Acrylic glass with aerosol protective edge SMALL 800 x 69 X 500

Made in Germany - Quality RÖHM acrylic glass plate with all-round, rounded aerosol protection edge and extension foot.

139.30 £ incl. VAT Show net price (VAT not included)

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School protective wall Acrylic glass with aerosol protective edge MEDIUM 1007 x 69 x 688 show in Trotec online shop

School protective wall Acrylic glass with aerosol protective edge MEDIUM 1007 x 69 x 688

Made in Germany - Quality RÖHM acrylic glass plate with all-round, rounded aerosol protection edge and extension foot.

160.90 £ incl. VAT Show net price (VAT not included)

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Office protective wall acrylic glass with aerosol protective edge 1158 x 69 x 688 show in Trotec online shop

Office protective wall acrylic glass with aerosol protective edge 1158 x 69 x 688

Made in Germany - RÖHM high quality acrylic sheet with rounded aerosol protective edges, including holes in the protective edge for fixing with metal clips.

170.56 £ incl. VAT Show net price (VAT not included)

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Counter top acrylic glass with aerosol protection edge SMALL 595 x 250 X 750 show in Trotec online shop

Counter top acrylic glass with aerosol protection edge SMALL 595 x 250 X 750

Made in Germany - quality RÖHM acrylic glass panel with all-round aerosol protection edge and feet

Counter top acrylic glass with aerosol protection edge MEDIUM 795 x 250 X 750 show in Trotec online shop

Counter top acrylic glass with aerosol protection edge MEDIUM 795 x 250 X 750

Made in Germany - quality RÖHM acrylic glass panel with all-round aerosol protection edge and feet

124.76 £ incl. VAT Show net price (VAT not included)

buy

Counter top acrylic glass with aerosol protection edge LARGE 995 x 250 x 750 show in Trotec online shop

Counter top acrylic glass with aerosol protection edge LARGE 995 x 250 x 750

Made in Germany - quality RÖHM acrylic glass panel with all-round aerosol protection edge and feet

136.21 £ incl. VAT Show net price (VAT not included)

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Details

Table divider, small

Technical data
General information
  Article number 4.311.000.100
Dimensions
  Width (packaging excluded) [mm] 1,000
  Height (packaging excluded) [mm] 500
  Width (protective wall area) [mm] 800
  Height (protective wall area) [mm] 500
Weight
  (packaging excluded) [kg] 11.5

 standard equipment

 optionally available

 not available

Table divider, medium

Technical data
General information
  Article number 4.311.000.105
Dimensions
  Width (packaging excluded) [mm] 1,200
  Height (packaging excluded) [mm] 688
  Width (protective wall area) [mm] 1,007
  Height (protective wall area) [mm] 688
Weight
  (packaging excluded) [kg] 12

 standard equipment

 optionally available

 not available

Table divider, office

Technical data
General information
  Article number 4.311.000.110
Dimensions
  Width (packaging excluded) [mm] 1,158
  Height (packaging excluded) [mm] 688
Weight
  (packaging excluded) [kg] 12

 standard equipment

 optionally available

 not available

Countertop, S

Technical data
General information
  Article number 4.311.000.150
Dimensions
  Width (packaging excluded) [mm] 750
  Height (packaging excluded) [mm] 750
Weight
  (packaging excluded) [kg] 11.5

 standard equipment

 optionally available

 not available

Countertop, M

Technical data
General information
  Article number 4.311.000.151
Dimensions
  Width (packaging excluded) [mm] 795
  Height (packaging excluded) [mm] 750
Weight
  (packaging excluded) [kg] 11.5

 standard equipment

 optionally available

 not available

Countertop, L

Technical data
General information
  Article number 4.311.000.152
Dimensions
  Width (packaging excluded) [mm] 995
  Height (packaging excluded) [mm] 750
Weight
  (packaging excluded) [kg] 11.5

 standard equipment

 optionally available

 not available

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