https://www.ashrae.org/file library/about/position
documents/pd_indoorcarbondioxide_2022.pdf
21 page report from 2022
bottom line - if CO2 level is high in a bld - it might be due to low
ventilation rates - and low ventilation rates can expose occupants to
higher levels of germs
it all comes down to fluid dynamics and molecule movement - like
dropping a pebble in a pond - kinda like that - or like the wind
blowing thru your hair - or wind blowing anywhere lol