"In a joint effort, the U.S. Food and Drug Administration and the Centers for Disease Control and Prevention took action to make more respirators, including certain N95s, available to health care personnel.
Currently, the majority of respirators on the market are indicated for use in industrial settings. Today's action allows certain National Institute for Occupational Safety and Health (NIOSH) approved respirators not currently regulated by the FDA to be used in a health care setting by health care..."
Mentioned links:
https://www.fda.gov/emergency-preparedness-and-response/mcm-issues/coronavirus-disease-2019-covid-19