Testing which face masks actually offer the best protection
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If you're looking to boost your face mask's ability to filter out small particles, we've got three tips from researchers who've been testing mask materials in light of the pandemic — including a hack that involves a pair of pantyhose. | NPR
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What is the best face mask to wear to stop the spread of COVID-19?
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What is the best face mask to wear to stop the spread of COVID-19?
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