Quote:
Originally Posted by Number 10 GI
Air has to flow through the filter material of the mask otherwise you will suffocate. If air passes though so will the virus.
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Not necessarily. If the virus is in a water droplet, it might be contained by the mask and remain on the surface. The infection rate in parts of Asia where mask wearing is common is far below that of Europe where mask wearing is rare. Anecdotal, but worth some thought.