“It’s become clear that cloth masks, even though they’re not as effective as the N95s, are still effective at reducing transmission,” said Linsey Marr, an aerosol expert at Virginia Tech. “Even if you’re not achieving that 95 percent reduction, something is better than nothing.”
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October 31, 2020 at 02:49AM
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Masks Work. Really. We'll Show You How. - The New York Times
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