Pm2.5 Face Masks with extra Gaskets and Filters Accessories
1. Prevent droplets and smog, particles, dust, and chemicals in the air
2. Secure fit and comfortable breathing
3. Extra breathing valves
4. Filters with 5 layers of protection, PM2.5
Note: Usually one filter can be used for 30 days, It is recommended to replace at any time during flu and heavy pollution periods.