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Hydrox, a gas mixture of hydrogen and oxygen, is occasionally used as an experimental breathing gas in very deep diving. [ 1 ] [ 2 ] It allows divers to descend several hundred metres. [ 3 ] [ 4 ] [ 5 ] Hydrox has been used experimentally in surface supplied, saturation, and scuba diving, both on open circuit and with closed circuit rebreathers.
A breathing gas is a mixture of gaseous chemical elements and compounds used for respiration. Air is the most common and only natural breathing gas. Other mixtures of gases, or pure oxygen, are also used in breathing equipment and enclosed habitats such as scuba equipment, surface supplied diving equipment, recompression chambers, high-altitude mountaineering, high-flying aircraft, submarines ...
Hydreliox – Breathing gas mixture of hydrogen, helium, and oxygen; Hydrox – Breathing gas mixture experimentally used for very deep diving; Compression arthralgia – Joint pain caused by fast compression to high ambient pressure; High-pressure nervous syndrome – Disorder from breathing helium based gas
Argox – Gas mixture occasionally used by scuba divers for dry-suit inflation; Heliox – A breathing gas mixed from helium and oxygen; Hydreliox – Breathing gas mixture of hydrogen, helium, and oxygen; Hydrox – Breathing gas mixture experimentally used for very deep diving; Nitrox – Breathing gas, mixture of nitrogen and oxygen
The third gas in trimix is nitrogen and the third gas in hydreliox is hydrogen. Because hydrogen is the lightest gas, it is easier to breathe than nitrogen under high pressure. To avoid the risk of explosion, as a rule of thumb hydrogen is only considered for use in breathing mixtures if the proportion of oxygen in the mixture is less than 5%.
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Hydrox (breathing gas) – Breathing gas mixture experimentally used for very deep diving; Nitrox – Breathing gas, mixture of nitrogen and oxygen; Oxygen – Chemical element with symbol O and atomic number 8; Trimix (breathing gas) – Breathing gas consisting of oxygen, helium and nitrogen; Breathing gases by use:
The ensuing madness was one of the wilder and weirder stories in NFL lore — part who done it, part high-paid legal drama, part science lesson, part Rorschach test, part character assassination ...