Gas Mask (Double Cartridges) GM-0503E

Single Cartridge 303 & 306 
Double Cartridge 304 & 305 
Chemical Dust & Gas Resistance Mask 
Technique Files of Dust Mask Against Organic Gas/Acid Gas 
Test Project Standard 
1.  Mask Appearance Mask Looks Smooth, No Bubbles, No Burr,     no Effect on Gas-tight Defect 
2.   Components with Strong > 49N 
3.   Mask of Air Flow Resistance < 20Pa 
4.   Airtight of Valve > 20s (Humidity: 17-30OC, Relative Humidity :     < 75%) 
5.   Aging of Valve After Adding from 8 Hours Under 100+20C is not       Sticky, Non-Deformed; Air Flowresistance >20s 
6.   Mask Leakage Coefficient 65% Below:>35o