Product parametersModule: Fresh air moduleFiltration efficiency: 99.98% (particulate matter above 0.3 microns)Battery capacity: 600MAHInput voltage: 5VMaximum fan volume: 4.5CMFMaximum noise: 27DBAFeatures: Intelligent fresh air active air supplyFan air volume: third gearCharging time: about 2HLife time: high speed 4H, medium speed 6H, low speed 8HProduct color: dark grayPacking list: Silicone liner * 1 Mask body * 1 Fresh air module * 1 Filter element * 5 Tools * 1 Manual * 1 Charging cable * 1Material and function descriptionFilter element:1. High-efficiency fiber filter layer: can filter large particles above PM102, high-efficiency composite shell activated carbon particles: can adsorb odors and formaldehyde3, HEPA (Hypa) meltblown composite filter cotton: can filter 0.3 microns particles4, sterilization cloth: sterilizationMask material: imported polyester PU spongeLiner: silicone, non-toxic, tasteless and non-irritating
Trustpilot
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