FDA’s Shifting Standards for Chinese Face Masks Fuel Confusion

The FDA has changed its mind about allowing Chinese-made KN95 masks to be used by healthcare workers several times, fueling confusion in State governments as they scramble to figure out if masks that they bought in the beginning months of the pandemic are safe and effective.

https://www.wsj.com/articles/fdas-shifting-standards-for-chinese-face-masks-fuel-confusion-11596460191?mod=ig_coronavirus