FDA Moves to Stop Subpar KN95 Respirators from Being Sold in the U.S.

The Food and Drug Administration (FDA) is warning health care workers and other medical first responders about defective KN95 respirators imported from China for failing to meet a minimum particulate filtration efficiency of 95 percent in National Institute for Occupational Safety and Health (NIOSH) testing. This move is a part of the broader effort by the FDA to combat the sale of fraudulent COVID-19 products. The FDA first allowed the import of Chinese-made KN95 respirators on April 3, 2020, by issuing an emergency use
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