Please Note:
Usually one filter can be used for 30 days, It is recommended to change at any time during flu and heavy pollution periods
Filter Activated Carbon PM 2.5 FM
Activated Carbon Dustproof Mask. Do you have problem with dust chemicals, smoke and particles. Do you want to enjoy a free outdoor life? Common mask? It has no effect. Moving purifying respirator? It is large and burden. That's a good reason to buy this Activated Carbon Dustproof Mask. Refused to be a human vacuum cleaner. A Must Have for outdoor activity suitable for dust, anti-vehicle exhaust, anti-pollen allergy, PM2.5, for cycling, hiking, skiing and other outdoor activities












