Originally posted by Ta Town Shocker
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virus is - 0.1 um. Particle counter reads down to 0.007 um. There is a high percentage block of particles in the study. The problem is that the study pushed filtered air with 75 um particles through the mask. Cloth was 25% effective while surgical masks were 80% effective and n95 was 95% effective.
The same study could be performed using 0.1 um particles.
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