Hello! I am happy to answer your question.

N95 masks are not product trademarks or brands. Here is an explanation for you, what is an N95 mask?

N95 is the lowest filtration efficiency level for American occupational anti-particulate respirators by NIOSH (National Institute for Occupational Safety and Health). It refers to the filtering efficiency of non-oily particles (such as dust) under the test conditions specified in the standard. , paint mist, acid mist, microorganisms, etc.) filtration efficiency is at least 95%. Anti-particulate masks that have obtained the US NIOSH N95 certification are often referred to as N95 masks.

3M has many masks that are NIOSH N95 certified. Real N95 masks should have the words NIOSH and N95 printed on the mask, and have a certification number, which can be checked on the NIOSH website. If the mask or packaging is only marked with the word N95, it is not a real N95 mask.

As for the service life of the mask, since 3M masks are maintenance-free, that is, the masks cannot be cleaned. Long-term use will mainly cause hygiene problems, or the infectious threat caused by repeated use of contaminated masks, it is recommended to wear them every day replace. Protective masks cannot be washed or disinfected, otherwise the filtration efficiency will be reduced. If you have been exposed to an infectious environment, or if you find dirty or damaged parts, such as a missing nose clip, broken headband, damaged mask, etc., you should replace it immediately.

I hope the above answer satisfies you! If you still have questions, please feel free to ask the company questions.