WASHINGTON, D.C. — The Occupational Safety and Health Administration (OSHA) has published a set of Frequently Asked Questions (FAQ) on how N95 respirators effectively protect wearers from coronavirus exposure.

OSHA is aware of incorrect claims stating that N95 respirators filter does not capture particles as small as the virus that causes the coronavirus. OSHA’s new FAQ explains why an N95 respirator is effective at protecting users from the virus.

"The National Institute for Occupational Safety and Health (NIOSH) tests respirators using particles that simulate a 0.3 micron diameter because this size particle is most likely to pass through the filter," the FAQ states. "If worn correctly, the N95 respirator will filter out at least 95% of particles this size."

Visit OSHA’s COVID-19 webpage for further information and resources about the coronavirus.