Masks Work. Really. We’ll Show You How.

A visual journey through the microscopic world of the coronavirus shows how masks provide an important defense against transmission.

“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.”


Via NYTimes

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