Video: How effective are cloth masks against coronavirus?


The U.S. Centers for Disease Control and Prevention 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 experts to find out and to learn which materials work best if you’re making your own:




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American Chemical Society——

American Chemical Society, ACS is a congressionally chartered independent membership organization which represents professionals at all degree levels and in all fields of chemistry and sciences that involve chemistry.