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  2. Confined space - Wikipedia

    en.wikipedia.org/wiki/Confined_space

    A confined space is a ... oxygen concentration is considered safe if it is between 19.5% and 23.5% of the total atmosphere. ... Other countries and authorities use a ...

  3. Immediately dangerous to life or health - Wikipedia

    en.wikipedia.org/wiki/Immediately_dangerous_to...

    Examples include high altitudes and unventilated, confined spaces. The OSHA definition is arguably broad enough to include oxygen-deficient circumstances in the absence of "airborne contaminants", as well as many other chemical, thermal, or pneumatic hazards to life or health (e.g., pure helium, super-cooled or super-heated air, hyperbaric or ...

  4. Limiting oxygen concentration - Wikipedia

    en.wikipedia.org/wiki/Limiting_oxygen_concentration

    The limiting oxygen concentration (LOC), [1] also known as the minimum oxygen concentration (MOC), [2] is defined as the limiting concentration of oxygen below which combustion is not possible, independent of the concentration of fuel. It is expressed in units of volume percent of oxygen. The LOC varies with pressure and temperature.

  5. Hypoxic air technology for fire prevention - Wikipedia

    en.wikipedia.org/wiki/Hypoxic_air_technology_for...

    Sensors continuously measure the levels of oxygen. These sensors provide real-time data to the control system, ensuring that the oxygen level is reduced to a safe level for fire prevention without compromising human safety. Distribution Network: This network delivers nitrogen-enriched air into the protected environment(s).

  6. Asphyxiant gas - Wikipedia

    en.wikipedia.org/wiki/Asphyxiant_gas

    Only where elevated concentrations of asphyxiant gases displace the normal oxygen concentration does a hazard exist. Examples are: Environmental gas displacement Confined spaces, combined with accidental gas leaks, such as mines, [1] submarines, [2] [3] refrigerators, [4] or other confined spaces [5]

  7. Not All Hyperbaric Oxygen Therapies Are Created Equal - AOL

    www.aol.com/lifestyle/not-hyperbaric-oxygen...

    HBOT ENTAILS BREATHING 100 percent oxygen in air pressure levels 1.5 ... Some people may feel claustrophobic or anxiety being in a confined space, Norsworthy adds. ... and there’s the risk of ...

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