3M 37083 1/2 Facepiece, Ultimate Reusable, Lg.

• Advance silicone material for increased comfort and greater durability
• Proprietary 3M™ CoolFlow™ valve helps makes breathing easier
• Dual-mode head harness adjusts easily for either standard or drop-down mode
• Exhalation valve cover directs exhaled breath and moisture downward to reduce fogging