3 ms·
>the type of mask is irrelevant to the discussion It absolutely is relevant. Rated masks (N95, etc) are designed and tested to achieve a particular level of p
by thenewnormal 5y ago
>the type of mask is irrelevant to the discussion
It absolutely is relevant. Rated masks (N95, etc) are designed and tested to achieve a particular level of particle filtration. If you want to avoid viral particles, find one that meets the specification you need and wear it.