Face Mask Reusable Washable Dust-Proof

Package Included: 1 x Anti-dust Mask 1 x USB Cable 5 x Green Filter(For Pollen) 5 x Blue Filter(For PM2.5) 1 x Filter Cover Removal Tool 1 x Package Box Specification: Product Name: Anti-pollution Mask Material: PP(polypropylene)+PC(polycarbonate) Color: Black, White Size:One size fits all Rated voltage:DC5V Rated power:0.4W Battery capacity:550mAh Life time:4-8H Executive standard:Q/HZSN001-2016 PM2.5 Filtration efficiency:99% Wind velocity: Adjustable(3 Mode) Built-in filter type: N95 Filter replaced: after 24 hours of use. Features: The purely mask is equipped with a micro module. The filter using the Nano-Electrical Fiber Transition Technology filters more than 99% of PM2.5's fresh air. The deep-purifying fresh air is sent to the inlet chamber cavity. The colleagues will use humidity and Exhaust gas is discharged from the cold flow breathing valve. A comprehensive solution to the problems of poor breathing, dampness, and phlegm in traditional masks will bring you comfortable and healthy breathing.