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How Well Do Masks Work?
Some experiments have been done with masks and just droplets with no virus in them, right? Yes. And you can measure the efficiency of different mask materials at keeping those in. So that makes it much harder to if you're if you're leaning on epidemiological stuff as opposed to like biophysics or something like the mechanic. There's no doubt about it and now is the time because once this is over, nobody's going to do it.