Cloth face coverings are less effective at protecting against COVID-19 than surgical masks and respirators, the Centers for Disease Control and Prevention said in an updated guidance on Friday.
The agency urged Americans to wear N95 or KN95 masks — so named because they filter out 95 percent of airborne particles — to slow the spread of the virus.
Those kinds of masks provide more protection than face coverings made of “loosely woven cloth,” the CDC said.
“Loosely woven cloth products provide the least protection, layered finely woven products offer more protection, well-fitting disposable surgical masks and KN95s offer even more protection, and well-fitting NIOSH-approved respirators (including N95s) offer the highest level of protection.”
The N95s and KN95s been previously prioritized for healthcare