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Coronavirus: New Research Reveals Which Face Masks Work Best | NBC Nightly News
Posted
August 11, 2020
Views
71,961
Likes
420
Comments
118
Engagement
0.75%
August 11, 2020
71,961
420
118
0.75%
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1:31Now PlayingResearchers at Duke Health tested 14 different types of masks with a simple experiment designed to visualize small droplets or particles sprayed during regular speech.
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Coronavirus: New Research Reveals Which Face Masks Work Best | NBC Nightly News
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