Coronavirus in schools: Air purifiers alone are not enough – room ventilation is still key
Indoor Air Hygiene Commission takes stand on air purifiers at schools
The use of mobile air purifiers alone is no substitute for adequate ventilation in schools. Mobile air purifiers merely circulate the air in the room and do not replace the necessary supply of outside air. However, there are cases where air purifiers can supplement ventilation in a meaningful way. This is the conclusion of a recent statement by the Indoor Air Hygiene Commission (IRK) at the German Environment Agency (UBA). The Commission recommends the use of air purifiers in schools where windows cannot be opened properly and where there are no simple supporting inlet and exhaust air systems. However, the devices should be properly assessed before use to ensure that they are suitable for the room in question. For example, the airflow rate must be high enough, the unit should not be noisy and should not emit any undesired pollutants.