Here’s everything you need to know on how to find a quality mask, if two masks are better than one, and if wearing two masks is right for you.
Some of the most important things to look for are multiple layers, tightly woven fabric, and a snug fit to the face.
According to Dr. Anthony Fauci, the director of the National Institute of Allergy and Infectious Diseases, wearing two masks is common sense.
Fauci told NBC News’ TODAY, “If you have a physical covering with one layer, you put another layer on, it just makes common sense that it likely would be more effective.”
Studies have found that multiple layers of fabric in a mask increase filtration effectiveness from virus particles.
Following that logic, by double-masking, a person is increasing the number of layers of fabric protecting their face, thereby upping the level of filtration.
Woven fabric is essentially a mesh grid made of threads. The more these grids layer on top of each other, the more likely holes are covered, which then creates more areas for respiratory particles to get blocked or trapped before they make it to your face.
Another advantage of donning two masks is that it helps with a snug fit.
The CDC has not issued official guidance on double-masking, however, the evidence suggests two masks are likely more effective than a single mask.
In situations where you are not able to social distance, you may want to double up by wearing a cloth mask over a surgical mask or two cloth masks.
One drawback of wearing two masks is that the multiple layers of material could make it harder to breathe. If you already have trouble breathing while wearing one mask, adding another may not be the best option.
The CDC notes wearing one mask is better than not wearing any face covering.