Breathe Easy With The Superior Technology Of Interspiro Click image for larger detailed view. Acrobat Reader required. The Interspiro S4 Rescue Pack has been developed as specialized rescue breathing apparatus equipment. The Rescue Pack is intended for the rescue of individuals in an IDLH atmosphere that are either wearing and SCBA or for individuals not wearing an SCBA. The Interspiro Technical Rescue Air Cart has been designed to provide air for all the various respirators and unique rescue tools that are used by Technical Rescue teams. Spiromatic SCBA use only Spiromatic Cylinder configurations. Spiroteck SCBA’s must use Spirotek Cylinder configurations. High Pressure SCBA’s require High Pressure cylinder configurations. Low Pressure SCBA’s require Low Pressure cylinder configurations.