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A comment on Back-of-the-envelope estimates of next quarter’s unemployment rate. Parent comment

Re:Back-of-the-envelope estimates of next quarter’s unemploy... by 3fe9a03ccd14ca5 on Monday March 30, 2020 @07:44PM (#22733352)
T-shirt fabric was found to be 75% effective at stopping droplets from spreading in a study[1]. That’s pretty remarkable considering and 95 masks are 95%! I guess that makes them N75 masks?

1. https://www.researchgate.net/publication/258525804_Testing_t...

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Re:Back-of-the-envelope estimates of next quarter’s unemploy... by gruez on Monday March 30, 2020 @07:49PM (#22733404)
the "95" part of N95 means it filters 95% of particles smaller than 0.3 microns. A sieve that can filter 95% of rice particles doesn't make a N95 mask either.
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