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  2. Self-contained breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Self-contained_breathing...

    Uses compressed oxygen. Uses an oxygen-generating solid. This involves a chemical reaction between potassium superoxide with exhaled water and carbon dioxide. A chlorate candle has to be struck to start the device. To reduce pressure buildup from use, a pressure-relief valve with saliva trap is included.

  3. Continuous emissions monitoring system - Wikipedia

    en.wikipedia.org/wiki/Continuous_emissions...

    Continuous emission monitoring systems (CEMS) are used as a tool to monitor the effluent gas streams resulting from combustion in industrial processes. CEMS can measure flue gas for oxygen , carbon monoxide and carbon dioxide to provide information for combustion control in industrial settings.

  4. Hypoxic air technology for fire prevention - Wikipedia

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

    Oxygen sensors are installed in the protected volumes to continuously monitor the oxygen concentration. The exact oxygen level to retain in the protected volumes is determined after a careful assessment of materials, configurations, and hazards. [3] Tables list ignition-limiting oxygen thresholds for some materials. Alternatively, the ignition ...

  5. Breathing apparatus - Wikipedia

    en.wikipedia.org/wiki/Breathing_apparatus

    An oxygen concentrator is a device that concentrates the oxygen from a gas supply (typically ambient air) by selectively removing nitrogen to supply an oxygen-enriched product gas stream. They are also used industrially and as medical devices for oxygen therapy. [58] Two methods in common use are pressure swing adsorption and membrane gas ...

  6. Oxygen sensor - Wikipedia

    en.wikipedia.org/wiki/Oxygen_sensor

    Scientists use oxygen sensors to measure respiration or production of oxygen and use a different approach. Oxygen sensors are used in oxygen analyzers, which find extensive use in medical applications such as anesthesia monitors, respirators and oxygen concentrators. Divers use oxygen sensors (and often call them ppO 2 sensors) to measure the ...

  7. Orsat gas analyser - Wikipedia

    en.wikipedia.org/wiki/Orsat_gas_analyser

    An Orsat gas analyser or Orsat apparatus is a piece of laboratory equipment used to analyse a gas sample (typically fossil fuel flue gas) for its oxygen, carbon monoxide and carbon dioxide content. Although largely replaced by instrumental techniques, the Orsat remains a reliable method of measurement and is relatively simple to use. [1]

  8. 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.

  9. Anaesthetic machine - Wikipedia

    en.wikipedia.org/wiki/Anaesthetic_machine

    Based on experience gained from analysis of mishaps, the modern anaesthetic machine incorporates several safety devices, including: an oxygen failure alarm (a.k.a. 'Oxygen Failure Warning Device' or OFWD). In older machines this was a pneumatic device called a Ritchie whistle which sounds when oxygen pressure is 38 psi descending.

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