The 3M™ Half Facepiece Reusable Respirator 7500 Series helps provide protection against particulates and a wide variety of gases and vapors when used with approved 3M cartridges and filters. When properly fitted and used with approved 3M™ cartridges and filters, this respirator (commonly referred to as a “mask”) helps provide respiratory protection at concentrations up to 10 times the Permissible Exposure Limit (PEL). This respirator uses an advanced silicone material that provides a softer feel on the face. A unique adjustment design helps reduce pressure points on the face for even more comfort. The 3M™ Cool Flow™ Valve helps make breathing easier and can offer cooler and drier comfort for the wearer.