Sell PM 2.5 Activated Carbon Face Mask Filter - 1PC. best price

<on hand> PM2.5 Activated Carbon Filter Carbon Face mask Breathing Insert for Protective Mask Filter Feature: Five Layer of Mask Filtering PM2.5 is ideal to protect your mouth and face from dust, Haze, Pollution, Ash, Pollen, Gardening Crafts Filters. 1st Layer - spunbond cloth, filter the dust of micron 2nd Layer: to filter industrial pollutants, automobile exhaust, second-hand smoke pollen allergies 3rd Layer: activated carbon cloth, benzene and a smaller function of filtering dust microns 4th Layerayer: filter density, smaller material 5th Layer: Spunbond cloth, filter out all kinds of harmful substances; Note: This is disposable Filter and recommended use is for 1 week per sheet.