Includes the 3M™ Service Life Indicator, an end-of-service-life indicator (ESLI) that can help users determine when to change cartridges in appropriate environments. See User Instructions to determine if the indicator is appropriate for your work environment. NIOSH approved against certain organic vapors. Use with 3M™ Half and Full Facepieces 6000, 6500, 7500, 7800 and FF-400 Series or 3M™ Scott™ AV-3000 HT and AV-3000 SureSeal facepieces with 3M™ Scott™ AV-632 Bayonet Adapter.