3M™ Silicone Half Mask Reusable Ultimate Series 7500Facepiece comes with 3M™ Cool Flow™ Exhalation Valve which includes a uniquevalve design that helps to make breathing easier, to reduce heat and moisturebuildup in the Facepiece. It is made from soft, resilient silicone and heatresistant plastics which provides a softer feel on the face. It includes uniqueadjustment design that helps to reduce pressure points on the face forunsurpassed comfort and head harness design that adjusts easily to use ineither traditional or drop-down modes. It is applicable in abatement, painting,welding, battery manufacturing, construction, utilities, mining,pharmaceutical, smelting and chemical handling. Misuse may result in sicknessor death.