The 3M™ Scott™ Air-Pak 75i SCBA is NIOSH approved for respiratory protection in IDLH environments and is suitable for use in industrial, firefighting (non-NFPA) and similar IDLH applications. The 3M™ Scott™ Air-Pak 75i SCBA is highly versatile, offering the widest range of cylinders and options to meet a wide range of needs. Utilizing a similar design to the NFPA certified Air-Pak 75 SCBA, the Air-Pak 75i SCBA features a streamlined backframe and comfortable fit for rigorous activities. 3M Scott's unique dual-redundant pressure reducer and unique Vibralert end-of-service time indicator provide peace of mind protection in the most demanding environments.