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  2. Confined space - Wikipedia

    en.wikipedia.org/wiki/Confined_space

    A confined space is a space with limited entry ... Confined space training outlines the skills and ... oxygen concentration is considered safe if it is between 19.5% ...

  3. Immediately dangerous to life or health - Wikipedia

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

    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 hypo-baric or submerged chambers, etc.).

  4. Confined space rescue - Wikipedia

    en.wikipedia.org/wiki/Confined_space_rescue

    Confined space rescue is a subset of technical rescue operations that involves the rescue and recovery of victims trapped in a confined space or in a place only accessible through confined spaces, such as underground vaults, storage silos, storage tanks, or sewers. A warning label on a storage tank, indicating that it is a confined space.

  5. 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]

  6. 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).

  7. ISS ECLSS - Wikipedia

    en.wikipedia.org/wiki/ISS_ECLSS

    The interactions between the components of the ISS Environmental Control and Life Support System (ECLSS) The International Space Station (ISS) Environmental Control and Life Support System (ECLSS) is a life support system that provides or controls atmospheric pressure, fire detection and suppression, oxygen levels, proper ventilation, waste management and water supply.

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