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by ceejayoz
2262 days ago
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https://www.ncbi.nlm.nih.gov/pubmed/24229526 > Both masks significantly reduced the number of microorganisms expelled by volunteers, although the surgical mask was 3 times more effective in blocking transmission than the homemade mask. Stopping droplets entirely isn't as critical as slowing them down. That's why the homemade masks still require the six foot social distancing. |
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