Differences among N95, KN95, FFP2

Filtering facepiece respirators (FFRs), sometimes called disposable respirators, are subject to different regulations around the world. These standards specify the required physical properties and operability.

1. Evaluation standards and ability to filter bacteria:

  N95 KN95 FFP2
  Standard   United States     NIOSH- 42CFR84   GB2626-2019(since    01/07/2020)   Europe EN 149-2001
  Filtration performance   At least 95%   Same as N95   At least 94%

2. Uses:

  • N95: This is a common mask for the prevention of influenza. It is effective according to the CDC in preventing the spread of influenza, swine flu, bird flu transmitted from person to person. The N95 respirator is designed to fit snugly through the nose and mouth, providing high effectiveness in prevention

Source: Careplus

KN95: These are mask lines with dust filter standards applied to particular cities such as Beijing, China.