The CO2 concentration is a recognized measure for evaluating indoor air quality. According to the Workplace Directive, this should not exceed 1,000 ppm. This can e.g. B. can be achieved by opening the window, then every 60 minutes, depending on the weather for 3-10 minutes, an intermittent ventilation should be carried out. Or the air exchange takes place through a ventilation system with a volume flow of approx. 30 m³ / h per person.
In addition to the removal of CO2, the mechanical ventilation in medical practices also prevents infections. Existing aerosols are transported to the outside via the devices and the fresh air supplied lowers the concentration of the aerosols in the room air.
Another possibility is the combination of mechanical ventilation and window ventilation. Through the use of efficient ventilation systems in waiting rooms and doctor’s offices, ventilation can take place entirely above them, or the number of window openings can be reduced to a minimum.