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...Self contained breathing apparatus scba are used to protect users against oxygen deficiency dust gases and vapors at plants aboard vessels fire in tunnels have been widely such fields as fighting rescue operations escape training stations iron works chemical nuclear facilities hotels etc throughout japan pressure demand type air automatic positive conversion nylon belt life gem z cs lightweight kg easy exhalation inhalation resistance reduced composition of series standard main body model with trunk case product code without weight app bypass valve combination regulator lock button stainless steel hanger harness picture shows c n s ba systematic diagram for facepiece optional parts size m high cylinder material gauge please use a specifications available facepieces hose warning device reducer method medium mask or safety atmosphere line connector maximum usable mpa supply rate l min zcs electronic speaker how read the lines diagrams represent following flows each connection operation l...