Specifications: 1. Time of gas defence:depending on the canister. 2. Exhalation resistance: 鈮?8 pa at 30L/min. 3. Visual field: total 鈮?75掳, binocular visual field 鈮?0掳. Below visual field鈮?0掳 4. Oil mist penetration coefficient: 鈮?.005 at 30L/min. 5. Leakage of mask: 鈮?.005% 6. Storage life:5 years in condition that canister shall be stored stated as follows. 7.Raw material of mask body: silicone/natural rubber 8.Raw material of straps/headpieces(5/6 pieces): silicone/natural rubber Size: Width 19+-1mm Thickness:1mm 9.Raw material of lens: Polycarbonate
Gas Mask NDSM2003 
