Sell Dust Cycling PM 2.5 Anti-Pollution Filter Activated Carbon Breathing Valve Sport best price

Product Features: Usually one filter can be used for 15 days, It is recommended to change at any time during flu and heavy pollution periods 100% brand new and high quality Material soft, comfortable wearing, good feeling Dustproof, very good thermal effect According to the person face design, keep out the bridge of the nose the following part, the bridge of the nose department have aluminum sheet fixed, to prevent the slide. Application: Adult Mouth part has ventilation holes, the magic stick fixed Effective filter PM2.5 up to 99.99% Color: Black