Face shields and masks reduce transmission by roughly 50%: far from "worthless."
The best mask is the N95. The others are marginal at best.
Face shields are not as effective as face masks, according to the Centers for Disease Control and Prevention
The CDC says, “It is not known what level of protection a face shield provides to people nearby from the spray of respiratory droplets from the wearer.” The report goes on to state that, “There is currently not enough evidence to support the effectiveness of face shields for source control.”
As common as cloth face masks have become, health experts say, they do little to prevent tiny virus particles from getting into your nose or mouth and aren't effective. "Cloth masks are not going to cut it with omicron," says Linsey Marr, a researcher at Virginia Tech told NPR.
From the warning label on paper masks sold in stores.
"This product is an ear loop mask, this product is not a respirator and will not provide any protections against COVID-19 (coronavirus) and other viruses or contaminants."
Fentanyl overdoses have surged to the leading cause of death for adults between the ages of 18 and 45, according to an analysis of U.S. government data.
