Wherever you are sharing air, the lower the CO2 level in a room, the lower risk of infection from respiratory viruses.

There is no single CO2 level at which a person can assume a shared indoor space is safe so wear mask in crowded indoor spaces this winter season

#sickbuildings #sickschools, #IAQ, #covid #RSV #CovidisAirborne #COVIDisAirborne #IndoorAirQuality

@Bob_Paul then there is no reason to factor is in. Everyone just needs to wear a mask in public spaces.
@Bob_Paul also, stop spreading misinformation on COVID.

@meowlygrowly

Wear a mask is FIRST and most important. Get Vaccinated and boosted as well.

Whether I teach hospital staff, public health officials, commercial or industry it always begins with Wear a Mask.

I work in the prevention of disease in buildings whether it is Covid, RSV, flus & colds, legionella, chemical exposure, and a hundred other bacterial/viral risks ranging from E. coli, cryptosporidium, or HIV. If my messaging is not clear on Wearing Masks, I will try to do better