N95 masks and KN95 masks are both types of respirator masks that are designed to filter out airborne particles. However, there are some key differences between the two that are important to know.
The N95 mask is the standard respirator mask used in North America, while the KN95 mask is the standard respirator mask used in China. The main difference between the two is the standard they are tested to. N95 masks are approved by the National Institute for Occupational Safety and Health (NIOSH) and are designed to filter out at least 95% of airborne particles. See the 3M 1870+ Aura N95. KN95 masks, on the other hand, are made to a Chinese standard (GB 2626) and are designed to filter out at least 95% of airborne particles as well.
Another difference between N95 masks and KN95 masks is the fit. Both are meant to seal closely to the face. N95 respirators usually use head straps, while many KN95s use ear loops, which can make a tight seal harder to keep — fit checking matters for either.
In conclusion, N95 masks and KN95 masks are both types of respirator masks that are designed to filter out airborne particles. The main differences are the standard they are tested to and how they are worn. Healthcare settings generally require NIOSH-approved N95s (surgical N95s for clinical use); check your workplace's requirements before choosing a KN95.
