Double masking
In corona 19 pandemic, Public health officials are suggesting double masking
Its's a way to increase the level of protection from the coronavirus
Futhermore, it helps us to prevent multiple, more contagious variants
It just makes common sense that it likely would be more effective in that case
Linsey Marr, a professor of civil and environmental engineering at Virginia Tech who is a leading expert in aerosol transmission of viruses, and Dr. Monica Gandhi, a professor of medicine at UCSF/San Francisco General Hospital say "For maximal protection," Marr and Gandhi suggested the public could "wear a cloth mask tightly on top of a surgical mask where the surgical mask acts as a filter and the cloth mask provides an additional layer of filtration while improving the fit."
A second option, they said, could be to wear a three-layer mask made from a flexible, tightly woven fabric that conforms to the face, with an insert of a "non-woven high-efficiency filter material," such as a vacuum bag
Layering your face may just save a life
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