The CDC says 2 masks are better than one for preventing the spread of COVID, especially the newer, more contagious varients.
Two methods substantially boost fit and protection, according to a CDC report and updated guidance on its website. One suggestion is wearing a cloth mask over a disposable surgical mask. The second suggestion is to improve the fit of a single surgical mask by knotting the ear loops and tucking in the sides close to the face to prevent air from leaking out around the edges, forming a closer fit.
Both of those methods served to reduce exposure to potentially infectious aerosols by more than 95 percent in a laboratory experiment using dummies.
“We know that universal masking works,” said John T. Brooks, medical officer for the Centers for Disease Control and Prevention’s covid-19 response. “And now these variants are circulating … whatever we can do to improve the fit of a mask to make it work better, the faster we can end this pandemic.”
Ending this pandemic. That is something we would all like to see.
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