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CDC recommendations

“Unless you work in health care, the CDC still recommends masks made with at least two layers of washable, breathable fabric. …A spokesperson for the CDC said that although the agency believes that N95 masks are “better at protecting the wearer, and if available should be worn,” cloth masks have been shown to be an “effective method of source control,” according to CDC research, and are still recommended when N95s aren’t available.” as of Oct 2021.  Note: CDC guidelines change regularly.

From the CDC Jan 31 2021:

CDC Masks to Select 2 layers Breathable fabric covers nose mouth snugly

 

CDC Mask for Glass Wearer Nose Wire No Fog