Filtration level: KN95 masks must filter out at least 95% of particulates, experts told us. For all of the masks I recommend, I obtained associated lab tests regarding filtration.

Researchers tested 14 commonly available masks including a professionally fitted N95 mask, usually reserved for health care workers. First the test was performed with a speaker talking without ...

The Centers for Disease Control (CDC) updated its mask guidance last week, recommending people wear N95 or KN95 masks. “As we are entering year three of the pandemic, we’re getting more and ...