![]() "In most cases, you'll be as good or better as you were without the mask brace." "As long as you're pushing the mask closer to your face, and you're not creating any new gaps that didn't exist before, will generally fit better," Rothamer says. Image courtesy of David Rothamer/University of Wisconsin-Madison Mask braces, the researchers say, "can substantially reduce aerosol emission when fit properly." The paper shows most masks don't meet their peak filtration efficiency because they don't fit a user's face. Rothamer contributed to the University of Wisconsin-Madison preprint (that means the work has not yet been peer-reviewed), which published to the MedRxiv server in January. And they all came to a similar conclusion: they work. What Does the Science Say?Ī few universities-including the University of Wisconsin-Madison, the University of North Carolina, and the University of Iowa-have produced white papers testing the effectiveness of mask braces. ![]() If it's significantly easier to breathe, or if you can feel more air escaping from the sides than when you placed your fingers over the mask in a triangle shape, you'll benefit from a better seal and should consider using a mask brace. KN95 Masks: What’s the Difference?Ĭompare this experience to regularly breathing through your mask.
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