Gas Mask
1. Protection object: filter canister is optional according to different needs, can prevent toxic gas, Toxic vapor steam, and toxic smoke and toxic smog .
2. Transmission rate of oil mist is less than 0.005% (30L/ min);
3. Aspiratory resistance is less than 186Pa (30L/ min);
4. Expiratory resistance is less than 100Pa (30L/ min)
5. Visual field: the total visual field is more than 75%, and binocular field is more than 30%.