Oceanwide Safety at Sea in Rotterdam is the global market leader of self-propelled hyperbaric lifeboats (SPHL) and Hytech-Pommec is its strategic partner for the duplex chamber and all associated life-support equipment. It is mandatory for Diving Support Vessels (DSV) to be equipped with adequate and dedicated safety equipment to allow for the evacuation on of divers under pressure in life threatening situations. The principle of the SPHL is the installation of an independent autonomous saturation system chamber, i.e. a saturation diving evacuation chamber, in a standard self-propelled and SOLAS-approved GPR hull that is otherwise normally equipped with a propulsion system, cooling system, hot water plant, navigation control and monitoring equipment, food/water supply and medical aid kits. The evacuation chamber, suitable for 12, 18 or 24 divers at working pressures specified up to 400 metres of seawater, is accessible through a lock in the bott om of the lifeboat. In compliance with IMO regulations and on the basis of the presumption that some means of rescue will arrive within that time span, the SPHL is capable to off er autonomy for the evacuated divers for 72 hours. The heliox and oxygen supplies needed for that period are stored in gas cylinders in the boat. The CO2 produced by the divers’ metabolic oxygen consumption is filtered by CO2 removal scrubbers, containing exchangeable canisters with soda lime granulate. A contamination scrubber and a hyperbaric toilet completes the outfit. To guarantee simplicity, safety and reliability, it consists of auxiliary redundant independent valves, pressure regulators, manometers, couplings and so on – highly appealing to those who grew up before the computer games’ era. It’s testament to the quality of Hytech-Pommec that every component as depicted in this picture is documented, certified, approved and traceable during its whole lifetime. A life-support package (fly-away package) for a SPHL provides the essential services to a hyperbaric rescue chamber/SPHL when evacuated from the mother vessel (DSV).