3M™ 6000 Series Reusable Silicone Full Facepiece Respirator. Features large lens for a wide field of view and excellent visibility. 4-point harness. Lightweight well-balanced design and silicone faceseal for enhanced comfort, durability and ease of cleaning. 3M™ Cool Flow™ Valve provides cool, dry comfort and makes breathing easier. Center adapter directs exhaled breath downward. Meets ANSI Z87.1-2010 impact requirements. Uses 3M™ filters and cartridges. Available in #6700 small, #6800 medium, #6900 large sizes.