If you are going to buy a face mask to protect yourself and others from COVID-19, make sure it's a three-layered mask. You might have already heard this recommendation, but researchers have now found ...

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If possible, wear a surgical mask (aka one of the disposable masks usually made of blue paper) as your first layer, then add a cloth mask on top, Dr. Subramanian said. That's because the cloth mask ...

• Three-layer masks have been found to keep you most protected from COVID-19 viral particles. • Recent research found that only about 30% of large respiratory droplets are blocked by single-layer ...