Dustproof Mask Activated Carbon Filtration Exhaust Gas Anti Pollen Allergy PM2.5 N99 Face Mask for Running Cycling and Other Outdoor Activities

Description

Color:Captain America How to Use: 1. Put th mask between the nose and chin. 2. Fixed the back of the dust mask with the velcro strap. 3. Install The aluminum bridge on the nose and adjust it yourself after you wear it. 4. Cover your face with your hands, then breath hard and feel if there is air flow. If not, then it is not appropriate. 5. Ensure that you are comfortable when you have wore this mask by adjusting the back of the velcro strap. Package Include: 1 x Dust Mask 2 x Air Valves 2 x Replaceable Filter Some Tips: 1. The mask can be wash.But you must put the filter down. 2. The 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. Lifespan: Mask Can Be Used More Than 2 Years. Frequently Filters Replaced Every 45 Days, Can Be Replaced Every 3 Months If Not Use Frequently. In addition, our product provide another replaceable filter.