Physicists establish fluid models of the transport of coronavirus through the air. Coronavirus particles from coughs can travel more than 20 feet before falling. These investigations demonstrate the importance of disinfecting both surfaces and air, which is why COUNTERFOG® is presented as the effective alternative to conventional disinfection methods.

Link to article:

https://www.abc.es/ciencia/abci-viaja-coronavirus-aire-cuando-enfermo-tose-frente-alguien-202011031900_noticia.html