The key to finding the best N95 masks lies in getting the right fit and near-perfect seal. These are our favorite filtering facewear.
by mask company Armbrust. In addition, we consulted scientific studies about general mask use and the effectiveness of high-filtration models, though few formal studies have compared different brands.
KN95 is a similar designation for masks in terms of filtration, but these masks meet standards set by the Chinese government. It’s more common for non-healthcare workers in the US to wear these than N95s. These masks also often have ear loops, making them easier to put on and more comfortable to wear than N95s, though there are some headband-style versions.
“Everyone’s faces are different,” says Thomas Russo, professor and chief of infectious disease at the Jacobs School of Medicine and Bioscience at the University of Buffalo. “And masks are designed differently as well.” From cup-shaped and “duckbill” N95s, to KN95s that fold down the middle, to the boat shape of many KF94s, there are a lot of options to fit different face shapes and sizes.
You might be able to feel on your face if air is coming out of any gaps. “When you exhale, you can feel the jets of air coming out” if the mask doesn’t fit well, says Scott Sanders, a professor of mechanical engineering at the University of Wisconsin, Madison. You can also try holding up your hands to the edges of your mask while you exhale to see if you can feel the air that way.
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