Air Quality Monitoring as Part of the Protection Concept
According to the Labour Code plus the COVID-19 Ordinance, companies are obliged to take appropriate measures to protect all employees (cf . SECO leaflet).
This obligation provides for the combination of several precautions to form protection concepts that can be justified according to the situation. Home office is one of them.
Let us briefly recapitulate: the risk of infection via droplet infection (up to 0.1 millimetres in diameter) is reduced by a minimum distance of 1.5 metres, short contact times, face masks and partitions. These larger particles are produced by blowing the nose, coughing, sneezing and "moist pronunciation", follow a ballistic curve and sink quickly to the ground.
Disinfectants protect against smear or direct contact infections from contaminated surfaces.
The risk from potentially infectious aerosols can be reduced by continuous air exchange or frequent ventilation: Cross-ventilation or shock-ventilation every 60 minutes are frequent recommendations. Special (expensive) filter technologies also help in the fight against the growing viral load. Instead of general or emotionally controlled ventilation impulses, objective monitoring of the prevailing air quality would certainly be more efficient. Unhealthy carbon dioxide concentrations are simply perceived by people far too late