Military folks know cloth masks don’t do jack. No seal, bad filtration.
PAPRs and elastomeric respirators are the clear choice but if the CDC had recommended them in March ‘20, our thin supply lines would’ve been overrun.
Medical professionals need them first.
Honestly, anyone immune-compromised and unvaccinated should be wearing a PAPR of some kind at this point and fuck what people think, I would not get on an international flight right now without one and let people take pics and laugh if they want...