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N99 mask is among the highest respiratory protective equipment used for preventing wearer from interacting with small-to-large particulates like viruses, bacteria, germs, flu, dirt, dust and other microbes. It is responsible for filtering at least 99% of infectious particles.
Posted by Tradeindia user (13-07-2020)
You can reuse N99 mask until its structural and functional property is reduced, is damaged or soiled, or causing breathing resistance. Moreover, you can head with manufacturer’s specified duration of use.
A N95 mask filters at least 95% of bacteria, viruses, germs and other microbes with size less than 0.3 micrometres, whereas a N99 mask filters 99% of small infectious particles and microbes with size less than 0.3 mm.