A<unk>  is a vessel for human occupation, which may have an entrance that can be sealed to hold an internal pressure significantly higher than ambient pressure, a pressurised gas system to control the internal pressure, and a supply of breathing gas for the occupants. There are two main functions for<unk> s: * as a simple form of submersible vessel to transport divers underwater and to provide a temporary base and retrieval system in the depths; * as a land, ship or offshore platform-based hyperbaric chamber or system, to artificially reproduce the hyperbaric conditions under the sea. Internal pressures above normal atmospheric pressure are provided for<unk> -related applications such as saturation<unk>  and diver decompression, and non-diving medical applications such as hyperbaric medicine.
Diving chamber
Drip chamber
Cooling center
Ussing chamber
In vivo bioreactor
Langendorff heart
Pacifier
Potential space