An N95 respirator or similar respirator is intended to seal tightly to the face, covering the mouth and nose, and can filter at least 95% of airborne particles, including those that may contain viruses and bacteria. The entire surface of the respirator is a filter, which makes it very efficient at capturing airborne particles.

To get a NIOSH approved “N95” designation, a respirator must filter at least 95% of non-oily particles, including very small particles that can’t be seen (such as viruses). It’s important to remember that a properly fitted respirator can help reduce your exposure but not eliminate it completely.

While N95 respirators provide critical protection for frontline workers of the COVID-19 pandemic, there is enough increased supply of N95 respirators that they are also available for the general public.