“I have lost all faith in humanity, I am surrounded by idiots wearing chinese paper over their mouths, destroying their hearts with low blood oxygen content”
This is the funniest thing I have read this week!!!!!
I cannot tolerate a standard surgical mask for more than 15 minutes without hypercapnia becoming obvious.
I have been able to use N99 respirators, with an external filter and fan to clear CO2 from the mask between breaths, for as much as an hour, but even that requires me to pause a second between exhale and inhale to allow the CO2 to dissipate from the mask.