Military semi-closed circuit passive addition diving rebreather
Schematic diagram of the breathing loop of the Interspiro DCSC seni-closed circuit rebreather 1 Nitrox feed gas cylinder 2 Cylinder valve 3 Pressure gauge 4 Feed gas first stage regulator 5 Dosage chamber 6 Dosage mechanism with control linkage from bellows cover 7 Hinged bellows counterlung 8 Bellows weight 9 Exhaust valve with control linkage from bellows cover 10 Radial flow scrubber 11 Exhalation hose 12 Mouthpiece with dive/surface valve and loop non-return valves 13 Inhalation hose 14 Manual bypass valve 15 Low gas warning valve
The Interspiro DCSC is a semi-closed circuit nitrox rebreather manufactured by Interspiro of Sweden for military applications.
Interspiro was formerly a division of AGA and has been manufacturing self-contained breathing apparatus for diving, firefighting and rescue applications since the 1950s.