Fire extinguisher

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A portable device used to put out fires. Fire extinguishers are specific to the combustion material in the fire.

  • Class A - combustible materials such as wood and textiles require a coolant extinguisher, such as or carbon dioxide.
  • Class B - flammable liquids, oils and grease require a smothering extinguisher, such as carbon dioxide, foam or dry chemical. Do not use water.
  • Class C - electrical fires require carbon dioxide gas or dry chemical extinguishers. Do not use water.
  • Class D - burning metals require a dry powder formulation such as graphite or trimethoxy boroxine. Do not use water.

Synonyms and Related Terms

extincteur (Fr.); extintor (Port.);


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