The 3M™ Scott™ Ska-Pak Supplied Air Respirator supplied air respirator is combination escape SCBA and airline respirator offering emergency respiratory protection for a variety of industrial applications. The 3M™ Scott™ Ska-Pak Supplied Air Respirator is designed for easy use and versatility for entry into or escape from hazardous or IDLH, environments. It is available with a lightweight, chemical resistant polypropylene harness or a fire Kevlar® harness. The Ska-Pak is available with 5 or 15 minute rated cylinder egress duration.