What to do: The CDC recommends knotting, folding then tucking the ear loops of 3-ply masks for a better fit — making the edges of the mask fit more tightly to your face. First, fold the mask in half ...
As new variants of the coronavirus spread within the United States, health professionals have suggested that Americans wear two masks. (Video: John Farrell/The Washington Post) Amid increasing ...
Using a custom-built exposure chamber, UNC School of Medicine and EPA scientists tested consumer-grade masks and improvised face coverings to show how effective they can be at protecting individuals ...
Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Click here to see all of PopSci’s COVID-19 coverage. Nearly a year ...
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