The threads of an N95 mask would create a gap ~27ft in diameter between them.
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Source: cdc characteristics on virus, and math.
So this time, fouci was right, masks don't do anything.
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Wrong. As someone else mentioned, masks quickly reach a saturation point, making them useless. At that point, then you are breathing through a soggy, disease ridden mess, dislodging particles to inhale.
For protecting others, I sugest you check out some high speed sneeze videos on youtube. Both disgusting and fasinating.
Ideally a sneeze is worst case what a mask has to stop. The force and spray through is crazy.