![]() So whether you’re looking for a comfortable N95 you can wear on a plane, a child-size KF94, KN95 masks your teenager can wear to school, or advice on double masking, we can help. Of course, any mask is better than no mask, but since this article was last updated in February 2021, we’ve talked to doctors, scientists, and public-health experts to help you find the best and most protective of the bunch. The agency’s new standards stress that fabric masks are the least protective against COVID-19, whereas well-fitting N95, KN95, and KF94 masks - which use special nonwoven materials with an electric charge to block tiny aerosol particles - do a much better job of stopping the virus’s spread. In light of the Omicron variant and at the urging of public-health experts, the CDC has updated its mask guidelines. Photo: Paul Drinkwater/NBCUniversal via Getty Images
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