Your mouth is where all the airborne pathogens come out. It is mainly beneficial for the afflicted to wear, but as for us healthy people, if we get coughed on, then as soon as that mask comes off, that cough juice on your shirt get you sick. It is unavoidable, unless you take unnecessary precautions, like a decontamination room. It is best to just stay at home if you can. Anyways, that is just what I have learned. You do what you want though. I do think that masks are required now tho.
It does little good
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