Feature●Adjustable_Face_Protection●Adjustable_Face_Protection●Elastic Strap closure●Package include: 4Pcs Unisex Protect Sport Masks with 8 pcs Carbon Filters with 8 pcs Exhaust Valves Replacement Dust●Replaceble activated carbon filter: helps you breath in a more clean way. With the replaceable design, you only need to change the Filter instead of the entire cycling cover.●Somatological design provide most comfort to users . Comfortable fabric,adjustable nose pad and hanging ear design Elastic strap to meet most peoples specific needs.●Two valves design act as blockers to the air, which help to achieve the effects of high altitude&low air concentration condition. This will increase the efficiency of your lung capacity training to some extent.●The face cover is Excellent in windproof and dustproof performance, typically good for buyers who like cycling, running, or doing other outdoor activities.[4+8+8b Pcs]
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