Usually, one filter can be used for 30 days, It is recommended to change at any time during heavy pollution periods
Filter Activated Carbon PM 2.5 FM
Filter Activated Carbon?PM 2.5 FM. Do you have problem with dust chemicals, smoke and particles. Do you want to enjoy a free outdoor life? Common Filter? It has no effect. Moving purifying respirator? It is large and burden. That’s a good reason to buy this Filter Activated Carbon PM 2.5 FM. 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.
– All Over Printed design is made with high-quality, 100% spun polyester that delivers the look and feels of organic cotton without ever cracking, peeling or flaking. The back of each design is the same as the front, so passerbys will be able to accurately double take your awesome product and confirm their jealousy of you. It stays wrinkle free and soft to the hand forever, able to withstand summer festivals, late nights and world domination with style and grace. Please kindly click “Size Guide” to view size charts for these designs.
– Part-printed designs are made of high-quality cotton. Please check the size chart at the product photo show.