Breathing in your own fetid breath isn't healthy. That's why respirators (the things that actually protect you from harmful airborne contaminates) have an outlet valve. The inlet valves have HEPA filters or other media, such as charcoal, that you need to filter out the bad shit. The outlet valve allows you to exhale and not re-enhale all the CO2, bacteria, and whatever else. (source - I've worn these in previous jobs).

These China made spit tents don't do jack shit. They don't protect you and they don't "protect others" (as the propaganda machine loves to frame it). All they do is prevent your shmoog from splattering onto people in your immediate vicinity. And if you're such an asshole that you sneeze or cough on others, you'll quickly have no friends. Scamdemic or not.

Breathing in your own fetid breath isn't healthy. That's why respirators (the things that actually protect you from harmful airborne contaminates) have an outlet valve. The inlet valves have HEPA filters or other media, such as charcoal, that you need to filter out the bad shit. (source - I've worn these in previous jobs).

These China made spit tents don't do jack shit. They don't protect you and they don't "protect others" (as the propaganda machine loves to frame it). All they do is prevent your shmoog from splattering onto people in your immediate vicinity. And if you're such an asshole that you sneeze or cough on others, you'll quickly have no friends. Scamdemic or not.