Masks efficiency?
Here are the numbers.
A virus particle is 0.125 microns.
An N95 mask only filters out particles 0.3 microns
Therefore every hole in a N95 mask lets in up to 3 virus particles.
Now a paper mask filters out particles up to 2.0 microns.
Therefore letting in 16 virus particles in every hole
Based on those figures I have constructed a mosquito proof mask.
I think you get the picture








Claye Fenwick
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Michael Knight
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Michael Knight
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Phill Mueller
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Phill Mueller
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Kat Kahn
A great overall from Maria Zee on the world and CDC and were we are at... 30 mins thereabouts. good listen in the car....
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