See what type of homemade face mask is best against COVID-19.
WEDNESDAY, July 1, 2020 (HealthDay News) -- Almost overnight, the pandemic has turned cotton masks into an American wardrobe staple. But a coughing simulation shows that not all cotton masks are equal as a defense against COVID-19.
"We focused primarily on nonmedical-grade masks that are recommended for use by the wider public," said lead author Siddhartha Verma. He's an assistant professor at Florida Atlantic University's Department of Ocean and Mechanical Engineering.
Using a mannequin head, air pumps and lasers, Verma and his team tracked emissions from a mechanically generated cough to see how well bandana-style coverings, folded cotton handkerchiefs, and/or stitched masks managed to contain them. Those are the types of face coverings that are widely available to the general public.