if they don't work, why do you need them?
right.
so if I have a mask on and someone next to me sneezes, you are saying the mask does not help protect that snot from getting in my nose/mouth?
if they don't work, why do you need them?
right.
so if I have a mask on and someone next to me sneezes, you are saying the mask does not help protect that snot from getting in my nose/mouth?