The 3M™ Organic Vapour/Acid Gas Respirator Assembly 5103 is NIOSH approved against certain organic vapours and acid gases. The 3M™ Organic Vapour/Acid Gas Respirator Assembly 5103 helps provide protection against certain airborne contaminants. This respirator is NIOSH approved for respiratory protection against certain organic vapours, chlorine, hydrogen chloride, sulfur dioxide, hydrogen sulfide, or hydrogen fluoride at up to ten times the permissible exposure limit (PEL). The 3M™ Organic Vapour/Acid Gas Respirator Assembly 5103 offers greater convenience by reducing the need for long-term maintenance. This half facepiece respirator is an ideal choice for intermittent use. Comes fully assembled with cartridge.