twin filter cartridges reusable silicone half face gas mask

twin cartridges air fitler half face mask   1. Different size(M/L) are available. 2. HY1000  Half Face Gas Mask with single cartridge       HY2000  Half Face Gas Mask with double cartridge   3. Conforms to EN140 and  EN14387:2004 standard.     Who we are ? ISO &CE certified dust mask and coveralls factory !  Over 20 years producing experiences ! 70,000sqm workshop area and over 1200 workers ! International morden test machine  to controll quality !