Video: How effective are cloth masks against coronavirus?

How effective are cloth masks against coronavirus? (video)
Credit: The American Chemical Society

The U.S. Centers for Disease Control is recommending that the general public wear cloth face masks to help decrease everyone's chances of getting COVID-19.

So how does the new coronavirus spread? And can a cloth face mask help stop it?

We contacted some to find out and to learn which materials work best if you're making your own:


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Citation: Video: How effective are cloth masks against coronavirus? (2020, April 20) retrieved 23 October 2020 from https://phys.org/news/2020-04-video-effective-masks-coronavirus.html
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