The Centers for Disease Control and Prevention has updated their stance on wearing two masks, saying it can be better than one in protecting against COVID-19, but there are some specifics.
The CDC released their findings Wednesday.
This study was specific to combining a snug fitting cloth mask over a surgical mask, a technique demonstrated by National Institute of Allergy and Infectious Diseases (NIAID) director Dr. Anthony Fauci back in January.
Using simulated coughs and breathing in a laboratory setting, researchers discovered that double-masking blocked more aerosol particles, improving mask performance by about 50 percent. They also found ways to wear masks to improve their effectiveness against the novel coronavirus.
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The CDC updated their websitewith the new mask-wearing guidance as well.
Wednesday, CDC director Rochelle Walensky reiterated the importance of at least wearing one mask, in a briefing from the White House COVID-19 Response Team.
"In the study, wearing any type of mask performed significantly better than not wearing a mask," said Walensky.