Researchers created a test to determine which masks are the least effective (cnn.com) 6 points by erohead 5y ago ↗ HN
[–] jaclaz 5y ago ↗ Actual study here:https://advances.sciencemag.org/content/early/2020/08/07/sci...Essentially the results are all in this image:https://advances.sciencemag.org/content/advances/early/2020/...
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[ 2.9 ms ] story [ 14.4 ms ] threadhttps://advances.sciencemag.org/content/early/2020/08/07/sci...
Essentially the results are all in this image:
https://advances.sciencemag.org/content/advances/early/2020/...