Runspeed Premium Anti Pollution Mask, Running Mask, Bike Mask, House Decorating Mask, Dust Mask for Woodworking. Activated Carbon Filtration Exhaust Anti Pollen Allergy PM2.5. ❤Healthy breathing - Active carbon filters isolate 95-percent of dust, chemicals, fumes and particulates. ❤Smooth breathing - Unique ventilation design, excellent permeability, double air breathing valve, air resistance is smaller,smooth breathing. ❤Fashion pattern design - Attractive appearance and is simple and lightweight. ❤Comfortable fabrics - Diving fabrics, soft texture,comfortable to wear. ❤Adjustable Velcro - Velcro neck design ingenious,the size can be adjusted to meet the most head type. ❤Combination of ergonomics perfectly - According to human face design,has a protective surface as the face size.The section of nose has aluminum fixed to prevent sliding. Installation instructions: 1.Cover the mask on the bridge of the nose and chin. 2.Fix the mask firmly with Velcro on the back. 3.Install wrought aluminium nose bridge,can be self-adjustment in accordance with each one a different face and nose,suitable for various face shape , high marginal adaptation. 4.Check whether appropriate by breathing hard with hand cover on the face to see if forced expiratory air can flow. 5.Adjust the Velcro on the back of the mask to adjust the tightness and firmness. Tips: 1. The cycling mask can be wash.But you must put the filter down. 2. The dust mask filter can be replaced,Here is the step: - Open the mask to expose the interior of the filter valve. - According to the OPEN directions on the valve,turn the valve counter(clockwise),to separate the valve. - Remove the filter. - Replace the new filter,reverse the above steps,clockwise rotation of the valve,over. 3. Average size,stretchy and adjustable.
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