How smart is it to deprive yourself of oxygen while exercising? Very dumb. What's dumber is that face masks are just that, face masks. They aren't air filters. They don't filter viruses out of the air.
How smart is it to deprive yourself of oxygen while exercising? Very dumb. What's dumber is that face masks are just that, face masks. They aren't air filters. They don't filter viruses out of the air.
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