The CDC shared a July 2020 study that showed layering a sleeve of “sheer nylon hosiery material” over a mask may improve the wearer’s protection. What's False The U.S. government has not issued a ...

Scientists who tested a variety of cloth face masks found that a nylon overlay significantly boosted how well they work. Researchers not involved... During World War II, nylon stockings disappeared ...

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 ...

The Centers for Disease Control and Prevention updated its mask guidance Wednesday to recommend wearing two masks as the United States combats highly contagious COVID-19 virus variants. CDC ...