Electric Valved Outdoor Riding Dust Mask PM2.5 Breath Protective Respirator

Features: Made of composite craft fabric material, strong resilience and durable. No trace of the whole process, skin contact and comfort, good air permeability. Built-in silent fan quickly discharges carbon dioxide and steam, keeping it breathable at any time. Built-in quick charging function, 30 minutes to fill, 450mA battery, sustainable use for 3.5 hours. Built-in 4 LED lights, electricity display at a glance. Specifications: Material: Composite Craft Fabric Color: Black Input Voltage: 5V Input Current: 1A Battery: 450mA Built-in Battery Charging Time: 30min Filtration Efficiency: N95 Maximum Air Flow: 0.9cmf Noise: 37dB Mask Size: (L) x (W) 179 x 136mm /7.05" x 5.35"(appr.) Module Size: (L) x (W) x (H) 72.5 x 36 x 7.5mm /2.85" x 1.42" x 0.30"(appr.) Note: * Dust mask can be washed. * Filter element can not be used repeatedly (a piece of filter can be used for a week, according to the actual use of the replacement). * Module is not waterproof, do not soak in water. Package Included: 1 x Dust Mask 5 x Filter Element 1 x Charging Cable 1 x Storage Bag Detail Pictures: