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Scientists tested 14 types of masks — here are the ones that worked and didn’t

New York Post
 2020-08-09

Cover picture for the articleBandannas, gaiters and knitted masks are some of the least effective face coverings for preventing the spread of coronavirus, according to a new study. Researchers at Duke University made the discovery while testing 14 different types of masks, according to the study published Friday. N95 masks, often used by...

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