High efficiency electrostatic filter material, low respiratory resistance, effective protection of dust under 0.3 mum

The combination of elastic band and headband reduces the pressure on the head and neck and does not affect the wearing of other protective products

Unique fan type exhalation valve, low resistance to exhalation, not stuffy, more rapid exhalation chamber of moisture, heat, dry and comfortable

One-way drainage valve, discharge specific internal steam, dry and comfortable