It filters 95% of particulate matter, just like the N95 mask, says Dr. Nina Shapiro, a pediatric ear, nose and throat specialist at Westside Head and Neck in California. KN95 masks are the Chinese ...

That’s because N95 masks filter up to 95 percent of particles in the air. KN95 masks offer a similarly high degree of protection; however, the CDC warns that around 60 percent of KN95 masks in ...