Fire Safety Equipment 300bar Scba Air Breathing Apparatus En137: 2006 >Specification: Volume of the gas cylinder 6.8L/9L Cylinder material Carbon fiber composites Service time ≥60mins at 30L/min Working pressure 30MPa Hydrostatic pressure 45MPa Overall weight 9kg(air not included) Gas Compressed air Standard CE: EN137 Type KL99-6.8L/30 KL99-9L/30 Working pressure(MPa) 30 30 Volume of the gas cylinder(L) 6.8 9 Max flow(L/min) 300 300 Inhalation resistance(Pa)