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by sokoloff
996 days ago
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It looks like FFP3 are analogous to N99 masks. A mask mandate that permits "wrap a piece of T-shirt over your mouth, some of the time, sometimes even covering your nose" (which is not far from what I saw for much of 2020) is, unsurprisingly, going to be more effective at ensuring grudging compliance with a mandate than it is to reduce the spread of an airborne virus. |
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