Does an N95 count as a respirator?

Yes, an N95 mask is considered a type of respirator. Specifically, it is a filtering facepiece respirator (FFR) that meets the NIOSH (National Institute for Occupational Safety and Health) standard for filtering out at least 95% of airborne particles. Unlike cloth masks or surgical masks, N95 respirators are designed to fit closely to the face, forming a tight seal to prevent particles from bypassing the filter material. This tight seal and high filtration efficiency make N95 respirators effective for protecting against particulate hazards, such as dust, allergens, and biological particles, including viruses and bacteria.

However, N95s do not protect against gases or vapors, as they are particulate respirators only. They are also typically designed for single-use and should be replaced when damaged, soiled, or when breathing becomes difficult. In occupational settings, proper fit testing and training are required to ensure that N95 respirators provide effective protection.