Not quite accurate. N95 is intended to filter 95% of particles 300nm or larger. SARS-CoV-2 is ~100nm in diameter. Technically the N95 filter can filter particles smaller than 300nm but not well.
Not quite accurate. N95 is intended to filter 95% of particles 300nm or larger. SARS-CoV-2 is ~100nm in diameter. Technically the N95 filter can filter particles smaller than 300nm but not well.
The problem is the common n95 masks have a terrible seal, there is almost always a gap around the nose or under the chin.
The problem is the common n95 masks have a terrible seal, there is almost always a gap around the nose or under the chin.
The masks you're referring to are probably not N95s. I have yet to see anyone anywhere wearing an N95 (including in hospitals). A proper N95 has metal strips on the nose and chin. Everyone is wearing shit tier surgical masks and useless cloth "masks".
The masks you're referring to are probably not N95s. I have yet to see anyone anywhere wearing an N95 (including in hospitals). A proper N95 has metal strips on the nose and chin. Everyone is wearing shit tier surgical masks and useless cloth "masks".
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