Type: Face Shields & HeadGear Brand: 3M colour Family: Black Sub Type: Dust Masks Large lens provides a wide field of view for excellent visibility. Lightweight well-balanced design and silicone face seal for enhanced comfort, durability and ease of cleaning, Available in air-purifying and supplied air respirator modes. Center adapter directs exhaled breath downward.3M Cool Flow Valve makes breathing easier to provide cool, dry comfort.