Counterfeit respirators are products offered and falsely marketed as being NIOSH-approved, but might not be capable of giving appropriate protection to individual wearers. How to identify a NIOSH-approved respirator?
Decontamination of N95 FFR may vary depending on the substance or chemicals used for the decontamination process. FFRs are highly considered to be a one-time use products and as of the moment, there are no authorized methods for the decontamination and reuse of FFR. But, still there are potential decontamination methods that can be used for some circumstances.