going above and beyond
- Nov 17, 2006
“We recommend now based on this study that people use a three-layer mask,” she said, where “the outer two layers are a tightly woven but flexible material that allows the mask to conform to your face.” The middle layer of such a mask is a filter. A two-layer mask could also work, Marr said, provided it had a “good, tight weave.”
Study: A good cloth mask is a powerful weapon against the coronavirus
Face coverings, including masks made of cloth, are highly effective in protecting the people who wear them and those around them, according to a new study.