Do masks help stop the spread? This video might say: "somewhat..."
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FearlessFly
Level 9
Apr 5, 2020
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Thanks for that. I suspected as much. As the video shows, most of the particles hang around in unventilated spaces and are small enough to get through masks. Increasing ventilation seems to be much more useful than wearing masks. Fresh air or scuba are probably best, but very costly and thus scarcely practical...
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