Your 4 chief medical officers are either lying, willfully ignorant, or severely out of touch with reality.
RE: CO
2
ABSTRACT The use of face masks is among the measures taken to prevent person-to-person transmission of the virus (SARS-CoV-2) responsible for the coronavirus disease (COVID-19). Lately, concern was expressed about the possibility that carbon dioxide could build up in the mask over time...
aaqr.org
archive.thinkprogress.org
RE: psychological effect of wearing masks
All you have to do is type it into Google and hit enter.