N95 masks and how they work 896 viewsJanuary 3, 2024 Question92.27K March 31, 2020 0 Comments N95 masks and how they work In: Technology 3 Answers ActiveNewestOldest Anonymous Posted March 31, 2020 0 Comments N means it’s Not resistant to oil. 95 means it should, properly used, filter 95% of particles 0.3 μm or larger. [NIOSH air filtration rating](https://en.wikipedia.org/wiki/NIOSH_air_filtration_rating) You are viewing 1 out of 3 answers, click here to view all answers. Register or Login
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