Medical-grade disposable face masks (often called surgical masks or medical procedure masks) are regulated by the U.S. Food and Drug Administration.

Wearing a disposable medical procedure mask under a cloth face covering significantly reduces the flow of respiratory droplets from the nose and mouth, which could limit the spread of COVID-19.

The CDC team used a medical procedure mask, and a three-layered cloth mask for a total of 12 different mask combinations. They performed tests using various combinations of no mask, ...

How to double mask effectively. According to a recent CDC study, doubling up a disposable medical procedure mask with a cloth one can lower exposure to particles sized 0.1–7 μm (the typical ...

Researchers found that wearing a medical procedure mask snugly beneath a cloth mask nearly doubled the effectiveness of filtering out particles the size of SARS-CoV-2, compared with wearing just ...

Medical procedure masks, as well as N95 or N99 masks, are the most effective at limiting virus spread via respiratory droplets, according to recent studies.

Wearing a cloth mask over a medical procedure mask significantly helps reduce exposure to the coronavirus, according to a new CDC study. Researchers determined double-masking or wearing tightly ...

How do I wear my mask correctly? The key, federal scientists said in a report released this month, is to make the masks fit better.. Using a loose medical procedure mask or only a cloth mask ...

“What we want to do is now help consumers make mask-wearing work better for them,” Dr. John Brooks, the CDC’s chief medical officer for COVID-19 response, who co-authored the new study, told ...

The efficiency dropped to 64.5 percent when the receiver wore only a medical procedure mask that had its ear loops knotted near the edges for a tighter fit and the extra material tucked and ...

The CDC released a study in February that indicates wearing a fitted cloth mask over a medical procedure mask is proven to offer more protection against COVID-19. Skip to Article.