I am guessing that there would be very few isolated viral particles in the air---that they would be in aerosolized droplets from breathing or coughing, which would be much larger in size.
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But if those droplets land on the mask, and then the user continues to inhale through that mask, it might be a problem
Kraj razgovora
Novi razgovor -
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Why does particles smaller than 0.1 micron have higher chance to be filtered compare to 0.1?
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