The Full Facepiece Reusable Respirator 6000 Series helps provide protection against certain airborne contaminants. Versatile—use with particulate filters, gas/vapor cartridges and supplied air respirator systems. The Cool Flow Valve helps make breathing easier. These features combine to make a comfortable, practical and economical solution. Recommended applications include assembly , chemical clean-up, chemical handling, chemical splash, chipping, chiseling, cleaning, furnace operations, grinding, laboratories, machining, masonry, painting, pouring/casting, sanding, sawing, and welding. in which this facepiece are commonly used include agriculture, construction, general manufacturing, pharmaceuticals, and primary metals. 4/case. ^^Features and Benefits: Large lens provides a wide field of view for excellent visibility |Lightweight well-balanced design and silicone faceseal for enhanced comfort, durability and ease of cleaning |Available in air-purifying and supplied air respirator modes |Center adapter directs exhaled breath downward |Cool Flow Valve makes breathing easier to provide cool, dry comfort