They demonstrate the effective transmission of the coronavirus through the air.

Hundreds of scientists argue that the coronavirus is effectively transmitted through the air. 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-demuestran-coronavirus-transmite-eficazmente-aire-202010201922_noticia.html