GREENSBORO, N.C. — If you're going to wear a mask, you want to make sure it really protects you. Health experts say one of these masks is far better at protecting you than the other. To show you why ...
Home-made cloth face masks likely need a minimum of two layers, and preferably three, to prevent the dispersal of viral droplets from the nose and mouth that are associated with the spread of COVID-19 ...
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