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2. Oxygen concentrator - Wikipedia

   en.wikipedia.org/wiki/Oxygen_concentrator

   An oxygen concentrator takes in air and removes nitrogen from it, leaving an oxygen-enriched gas for use by people requiring medical oxygen due to low oxygen levels in their blood. [4] Oxygen concentrators provide an economical source of oxygen in industrial processes, where they are also known as oxygen gas generators or oxygen generation plants.

3. High altitude breathing apparatus - Wikipedia

   en.wikipedia.org/wiki/High_altitude_breathing...

   by ventilatory driving force: the breathing effort of the user, or mechanical work from an external source, by gas mixture: air, oxygen enriched, or pure oxygen. The user respiratory interface is the delivery system by which the breathing apparatus guides the breathing gas flow to and from the user. Some form of facepiece, hood or helmet is usual.

4. PunBB - Wikipedia

   en.wikipedia.org/wiki/PunBB

   PunBB 1.4.2 using the standard Oxygen style. ... is a discussion forum software ... power the Facebook Developer's Forum, where users participated in ...

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

6. Effects of high altitude on humans - Wikipedia

   en.wikipedia.org/wiki/Effects_of_high_altitude...

   Mitigation may be by supplementary oxygen, pressurisation of the habitat or environmental protection suit, or a combination of both. In all cases the critical effect is the raising of oxygen partial pressure in the breathing gas. [1] Room air at altitude can be enriched with oxygen without introducing an unacceptable fire hazard.

7. Liquid breathing - Wikipedia

   en.wikipedia.org/wiki/Liquid_breathing

   Liquid breathing is a form of respiration in which a normally air-breathing organism breathes an oxygen-rich liquid which is capable of CO 2 gas exchange (such as a perfluorocarbon). [ 1 ] The liquid involved requires certain physical properties, such as respiratory gas solubility, density, viscosity, vapor pressure and lipid solubility, which ...

8. Smoking on oxygen killed 3 York countians this year. A ... - AOL

   www.aol.com/smoking-oxygen-killed-3-york...

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9. Oxygen mask - Wikipedia

   en.wikipedia.org/wiki/Oxygen_mask

   Below the oxygen mask is a rebreather bag that collects oxygen during exhalation and as a result allows a higher flow rate during the inhalation cycle. [5] Diluter-demand and pressure-demand masks supply oxygen only when the user inhales. [6] They each require a good seal between the mask and the user's face.