Features

1.Three-level smart switch button. Three levels of air intake are customized according to the three lung capacities of sitting,

walking, and running to ensure that every breath you take is safe and comfortable.

2.With valve, the valve is closed when inhaling to prevent polluted air from entering; the breathing valve is opened when exhaling

to discharge exhaust gas

3.USB charging, charging for 4 hours, battery life 6-8 hours.

4.High efficiency filter, anti-bacterial + activated carbon layer + HEPA

5.Uses: anti-smog, anti-PM2.5 particles, anti-dust, anti-pollen, anti-second-hand smoke, anti-formaldehyde, etc.

6.Waterproof design, even if it rains.