Heliox

From Academic Kids

Heliox is a diving breathing gas, consisting of oxygen and helium, that is often used during the deep phase of dives carried out using technical diving techniques. It is also used in medical applications to help patients breathe better in asthma attacks or upper respiratory distresses.

Other special breathing gases include:

  • Enriched-air Nitrox, a commonly-available alternative to regular air.
  • Trimix, a close rival and slightly less expensive alternative to Heliox. Trimix is often used in commercial diving.

Because sound travels faster in Heliox than in air, voice formants are raised, making divers' speech incomprehensible to people not used to it.

Template:Sport-stubfr:Hliox nl:Heliox ru:Гелиокс (дайвинг) sv:Heliox

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