Usually, one filter can be used for 30 days, It is recommended to change at any time during heavy pollution periods
<strong>Filter Activated Carbon PM 2.5 FM</strong>
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.
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