How to reduce the risk of COVID-19 infection with Aranet4

Amidst the pandemic, it is a very real risk to get infected with COVID-19. So how can we protect ourselves? And how can Aranet4 help us?

Studies demonstrate that COVID-19 is spread via aerosols
Proper ventilation can reduce the risk of COVID-19 infection
CO₂ concentration can be used as an air quality indicator and can be monitored with sensors such as Aranet4
Aranet4 warns you when the air quality has deteriorated, and you should improve air exchange