Use in a variety of applications including petrochemical, laboratories, pharmaceutical and chemical manufacturing. When properly fitted, helps provide respiratory protection from certain organic vapors, chlorine, hydrogen chloride, sulfur dioxide, or hydrogen sulfide (escape only) or hydrogen fluoride and particulates at concentrations up to 10 times the Permissible Exposure Limit (PEL) with half facepieces or 50 times PEL with full facepieces. Do not use in environments that are immediately dangerous to life or health (IDLH).