Sell 5 pcs NXTGEN filters heavy duty NO VALVE HOLE best price

***please choose J&T for shipping as shopee express is not fully operational in Cebu City*** 1 pack = 5 pieces filters This filter media has a class 1 flammability rating and is ASTM level 3 fluid resistant. In the clinical environment, this filter composite is recommended for uses where respirators are required, such as residual surgical smoke or patients with known or suspected aerosol transmittable diseases. For industrial and consumer use, this filter media is extremely breathable for such robust filtration and excellent for non-oil, non-gas and non-organic vapor particle protection against dust, mist, fumes, fibers, and wildfire pollution Front Layer: 15 GSM spunbond polypropylene Second Layer: 25 GSM meltblown cloth Third Layer: Tribo-electrostatic (HV Technostat® Plus) Back Layer: 15 GSM spunbond polypropylene 4 layer filter change intervals: After heavy use or when soiled When there is increased breathing resistance After 8 hours of continuous wearing Max change interval is 40 hours or 30 days of intermittent use