not sure what your point is. The mask may stop some flinging if particles but not all. I said covering your cough or sneeze would be as effective. It does not filter viral particles. It is ineffective at stopping t the spread of disease.
Worse yet the masks are often worn inappropriately and do not fit. They are not discarded after a single use but worn again and again after spending time in your car pocket or purse. they may a lovely disease vector all on their own. Want to wear one? go ahead. Dont expect me to go along with your charade
It doesn't have to. You still don't seem to have read the post you were replying to.