The minimal level of filtration approved by NIOSH is 95 percent. The N, R and P designations refer to the filter’s oil resistance. Here are the main differences among KN95, N95 and KF94 masks ...

The minimal level of filtration approved by NIOSH is 95 percent. The N, R and P designations refer to the filter’s oil resistance. Here are the main differences among KN95, N95 and KF94 masks ...

The minimal level of filtration approved by NIOSH is 95 percent. The N, R and P designations refer to the filter’s oil resistance. Here are the main differences among KN95, N95 and KF94 masks ...

We also show you where you can buy N95 masks and KN95 masks. You can buy NIOSH approved N95 masks and authorized KN95 masks, but there are different regulating agencies and protection levels.

In 2020, the FDA granted emergency-use authorization (EUA) for some KN95 masks due to N95 masks supply being scarce. However, the FDA has since revoked the EUA of non-NIOSH-approved respirators ...