Example of how the purpose of masks for ordinary people is still not understood. The ones with exhalation valves, including N95s, should not be worn around people, period. Not just in sterile hospital operating rooms as NYT claims. Cotton mask>valved N95.https://www.nytimes.com/interactive/2020/health/coronavirus-best-face-masks.html …
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Maybe some of these articles should discuss the fact that a mask is supposed to cover the nose as well as the mouth to be effective — even if it is less than comfortable. Growing NYC trend to wear masks pulled below the nose or with a cutout for the nose.
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