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Rebreather technology may be used where breathing gas supply is limited, such as underwater, in space, where the environment is toxic or hypoxic (as in firefighting), mine rescue, high-altitude operations, or where the breathing gas is specially enriched or contains expensive components, such as helium diluent or anaesthetic gases.
Oxygen rebreathers (simple closed circuit) are limited to a shallow depth range of approximately 6 m, beyond which the risk of acute oxygen toxicity rises to unacceptable levels very rapidly. Semi-closed circuit rebreathers are less efficient than closed circuit, and are more mechanically complex than open circuit scuba or oxygen rebreathers.
Many rebreathers have "water traps" in the counterlungs or scrubber casing, to stop large volumes of water from entering the scrubber media if the diver removes the mouthpiece underwater without closing the valve, or if the diver's lips get slack and let water leak in. [42] Some rebreathers have manual pumps to remove water from the water traps ...
The Halcyon RB80 is a non-depth-compensated passive addition semi-closed circuit rebreather of similar external dimensions to a standard AL80 scuba cylinder (11-litre, 207-bar aluminium cylinder, 185 mm diameter and about 660 mm long). It was originally developed by Reinhard Buchaly (RB) in 1996 for the cave exploration dives conducted by the ...
Scuba diving is a mode of underwater diving whereby divers use breathing equipment that is completely independent of a surface breathing gas supply, and therefore has a limited but variable endurance. [1] The word scuba is an acronym for "Self-Contained Underwater Breathing Apparatus" and was coined by Christian J. Lambertsen in a patent ...
The word SCUBA was coined in 1952 by Major Christian Lambertsen who served in the U.S. Army Medical Corps from 1944 to 1946 as a physician. [1] Lambertsen first called the closed-circuit rebreather apparatus he had invented "Laru", an (acronym for Lambertsen Amphibious Respiratory Unit) but, in 1952, rejected the term "Laru" for "SCUBA" ("Self-Contained Underwater Breathing Apparatus"). [2]
This is a list of makes of rebreather breathing sets, and equipment that incorporates a rebreather. Wikimedia Commons has media related to Rebreathers . Subcategories
Oceanic Worldwide – American recreational scuba equipment manufacturer – Scuba regulators, rebreathers and dive computers. [90] [91] Ocean Reef Group – Full-face masks. [92] Oceans (dive computers). [93] (Oceans S1 Supersonic dive computer) Oceanways – Subsidiary of SeaDive, Manufacturer of snorkelling equipment (masks, snorkels, fins ...
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