kungfuren

【Cycling Dust Mask】This mask designed with unique breath system for better personal protection. Outer mesh mask shell enhance breathability plus inner replaceable filter, which can blocks pollution like: exhaust fume, smog, pollen, dust etc.
【Five Layers of Filter Structure】Breathing face mask include one filter, which has 5 layers provide professional filtration. The first layer blocks large particles, the second activated carbon filter layer filter benzene, car exhaust. The third and fourth layer filter 0.03-0.3 microns of dust and particles. The fifth non-woven layer comfortable and breathable.
【Reduce Overheating & Fogging】 Dual one-way Breathing valves allow exhaustion of heat and carbon dioxide easily, provide smooth breathing, prevent fogging and overheating exceptionally well. Designed with neoprene structure, makes it well-ventilated, breathable and quick drying. Useful for those who need to wear the mask for hours at a time. Please replace the filter every 25-30 hours if the mask is used extensively in heavy dusty operations, such as grain bins, construction/demolition, etc.