Discover and read the best of Twitter Threads about #kf95

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Repeating warnings from @H_S_E and @NIOSH about earloops having a low fit test pass rate is unpopular, but what does the published literature say about earloop KN95s? #KN95
One study found that “KN95 masks failed fit testing in all (82 out of 82, 100%) healthcare workers evaluated”. openres.ersjournals.com/content/6/4/00…
Another study of #KF95 mаsks found that: “A result of ‘failed’ was recorded for 39 of 42 fit test episodes”. ijic.info/article/downlo… ImageImage
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