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Advanced Diving Equipment Company – American manufacturer of surface supplied diving helmets – Swindell free-flow open circuit air helmets. [1]Aeris (dive gear) – American brand of scuba equipment Originally a brand of American Underwater Products, founded in 1998, and merged into a sister-brand, Oceanic, in 2014.
The usual meaning of diving helmet is a piece of diving equipment that encases the user's head and delivers breathing gas to the diver, but the term "diving helmet", or "cave diving helmet" may also refer to a safety helmet like a climbing helmet or caving helmet that covers the top and back of the head, but is not sealed. These may be worn ...
Lightweight demand helmets are rigid structures which fully enclose the head of the diver and supply breathing gas "on demand". The flow of gas from the supply line is activated by inhalation reducing the pressure in the helmet to slightly below ambient, and a diaphragm in the demand valve senses this pressure difference and moves a lever to open the valve to allow breathing gas to flow into ...
Surface-supplied diver at the Monterey Bay Aquarium, Monterey, California US Navy Diver using Kirby Morgan Superlight 37 diving helmet [1]. Surface-supplied diving is a mode of underwater diving using equipment supplied with breathing gas through a diver's umbilical from the surface, either from the shore or from a diving support vessel, sometimes indirectly via a diving bell. [2]
The demand valves used on surface-supplied diving helmets and full-face masks work on exactly the same principles as the second stage scuba demand valves of single hose scuba, and in some cases may be the same unit with a different housing compatible with the specific mask or helmet. The demand valves used with surface supplied gas will ...
A diver in a pool wearing an AGA full face mask A diver wearing an Ocean Reef full face mask Head protection helmet for use with Ocean Reef full face diving mask. A full-face diving mask is a type of diving mask that seals the whole of the diver's face from the water and contains a mouthpiece, demand valve or constant flow gas supply that provides the diver with breathing gas. [1]
The diver fins upward while gently exhaling to keep expanding air in the lungs from causing lung expansion injuries. [58] cookie. Main article: Line marker. Personal non-directional line markers that mark specific locations, or the direction of one's own exit at line intersections. copper hat copper helmet. See: Standard diving dress
Diving boots - With dry suits, the boots are usually integrated. [3] Safety helmet for scuba diving. (Not part of the breathing apparatus.) Diving chain mail may be used as protection against bites by large marine animals; Diver's cages may be used as protection against large predators