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  2. Hydrogen safety - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_safety

    The Hindenburg disaster is an example of a large hydrogen explosion. Hydrogen safety covers the safe production, handling and use of hydrogen, particularly hydrogen gas fuel and liquid hydrogen. Hydrogen possesses the NFPA 704's highest rating of four on the flammability scale because it is flammable when mixed even in small amounts with ...

  3. Medical gas supply - Wikipedia

    en.wikipedia.org/wiki/Medical_gas_supply

    Medical oxygen storage tanks at the Royal Women's Hospital, Melbourne, Australia. Oxygen may be used for patients requiring supplemental oxygen via mask. Usually accomplished by a large storage system of liquid oxygen at the hospital which is evaporated into a concentrated oxygen supply, pressures are usually around 345–380 kPa (50.0–55.1 psi), [1] [2] or in the UK and Europe, 4–5 bar ...

  4. Hydrogen breath test - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_breath_test

    Hydrogen breath tests are based on the fact that there is no source for hydrogen gas in humans other than bacterial metabolism of carbohydrates. [4] Even though the test is normally known as a "hydrogen" breath test, some physicians may also test for methane in addition to hydrogen. Many studies have shown that some patients (approximately 35% ...

  5. Decompression sickness - Wikipedia

    en.wikipedia.org/wiki/Decompression_sickness

    The development of schedules that are both safe and efficient has been complicated by the large number of variables and uncertainties, including personal variation in response under varying environmental conditions and workload, attributed to variations of body type, fitness and other risk factors.

  6. Suicide bag - Wikipedia

    en.wikipedia.org/wiki/Suicide_bag

    Use of a suicide bag in a well ventilated room using either of these gases is unlikely to pose a hazard for other people, and there is no fire hazard. [ 30 ] Propane, butane and natural gas are to varying degrees narcotic, and are a serious fire and explosion hazard, depending on concentration of the gas and of oxygen. [ 32 ]

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    mail.aol.com/d?reason=invalid_cred

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  8. Is the viral hydrogen peroxide ear-cleaning hack on TikTok safe?

    www.aol.com/news/viral-hydrogen-peroxide-ear...

    Should TikTokers be putting hydrogen peroxide in their ears? The post Is the viral hydrogen peroxide ear-cleaning hack on TikTok safe? appeared first on In The Know.

  9. Breathing gas - Wikipedia

    en.wikipedia.org/wiki/Breathing_gas

    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 ...