A convenient ratchet fastening strap system and the stand-away head harness make putting the 9000 mask on and taking it off quick and easy. The strap tabs are securely molded directly to the flange for rugged use. The 9000 boasts an extra-wide viewing lens, with an exclusive over-molded flange design. This eliminates the traditional clamping frame found on most other face pieces. Advanced design eliminates unnecessary parts. Our overmolded flange and harness tabs, plus integrated exhalation assembly, make cleaning and maintaining the 9000 Series respirator a breeze.