PM2.5 Facemask Filter

NZ Shred Verified independent store

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When they reach their full capacity, PM2.5 filters lose their effectiveness in trapping air pollutants so they need to be changed regularly. First layer made of spunbond cloth and filters micron-level dustSecond layer filters industrial pollutants, automobile exhaust, second-hand smoke and pollen allergensThird layer made of activated carbon cloth which also filters micron-level dustFourth layer offers filter density for smaller materialsFifth layer made of spunbond clothIndividual filter dimensions: 12.1 x 8cmPLEASE NOTE: Filter inserts cannot be cleaned and should be replaced often. Filters should be replaced after 16-24 hours of total use (may last up to approx. 1-2 weeks for casual use). Show more