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In addition, according to the CDC, "cloth mask materials can also reduce wearers' exposure to infectious droplets through filtration, including filtration of fine droplets and particles less than 10 microns." A review of studies found that transmission of SARS-CoV-2 and related coronaviruses was 82% lower with physical distancing of 1 meter (3.3 feet) or more, compared with shorter distances, and protection might increase with additional distance. (Get more details about masking guidelines for fully vaccinated individuals in our article about COVID vaccines).Īlong with social distancing, a mask provides additional protection from infecting others as well as preventing exposure. Masks are also required for all individuals, regardless of vaccination status, when required by federal, state, local, tribal or territorial laws (including local business and workplace guidance), on public transportation, and in healthcare settings. In addition, due to concerns about the spread of the Delta and Omicron variants, masks are recommended for fully vaccinated individuals when in indoor spaces with high community transmission rates, as well as for fully vaccinated individuals with compromised immune systems or who are taking immune-suppressing drugs. While vaccination to protect against COVID-19 has led to a decreased need for masking in certain situations, unvaccinated individuals are still advised to wear a mask when in public indoor settings.

What Masks Protect Against Wildfire Smoke?.

Concern with Inhaling Microplastics and OPEs.

How to Improve Mask Fit to Reduce Leakage.How Cloth, N95, KN95 and other Masks Compare.

How Cotton and Other Household Fabrics Compare in Blocking Coronavirus.

Best Combination of Materials For a Mask.

Masks can be used alone or, for increased protection, particularly for the eyes, with a face shield - which we have also reviewed. We also identify what seem to be the best disposable filter materials. If you want to make your own mask (which can be quite effective) see the Best combination of materials for making a mask section. If you want a KN95 respirator, see the Finding the Best KN95 Masks section. If you want an N95 respirator, see Finding the Best N95 Masks section. CDC as well as the World Health Organization, go right to Best Cloth Masks You Can Buy. If you want to find and buy a good mask that meets the guidelines of the U.S. Disposable surgical masks are also readily available but tend to leave gaps between the mask and face, reducing their usefulness (although there are ways to improve it).

N95 masks are the gold standard, but other good options exist if you do not have an N95, primarily KN95 masks and well-made, well-fitting, 3-layer cloth masks.