I also compiled highly rated NIOSH-approved N95s that are available to buy online. SKIP AHEAD The best N95 masks to shop | How to wear N95 masks | When to wear a face mask | Why trust NBC Select?

N95 masks are approved by the NIOSH and meet U.S. standards. The CDC estimates that 60% of KN95 masks sold in the U.S. are fake. Standard KN95 masks are manufactured in China and satisfy standards ...