AOSafety’s new QuickFit™ air-purifying full-facepiece respirator features an exclusive twist and seal harness system that eliminates straps and buckles. By twisting the QuickDial the mask seals to the wearer’s face. Easy to put on and take off with one hand, the unit utilizes the full line of AOSafety 8000 Series bayonet style cartridges and filters.Aearo Co./AOSafety, Indianapolis, IN.