‘masks’ is about as vague as ‘food’ There are good and bad masks, just as there is good and bad food. A cloth mask will not protect you against an aerosol (note: am a researcher who has seen the electron microscopy images proving this), that is why N95s are mandated with no beards in any ISO work environment where you are subjected to aerosol risk. The inability of public dialog on this nuance is just a reflection of…
I thought the reason we should all wear masks is to protect everyone else around us by preventing our breathing/speaking from creating clouds of airbourne droplets.
I.E. it is supposed to filter the air you put out more than the air you breathe in.