Main Page | See live article | Alphabetical index A fire extingusher is a portable container of chemicals that can be discharged in a jet to put out a fire. There are three classes of fire exinguishers, A, B, and C. Class A extinguishers are used for putting out fires of general combustibles such as wood or paper. These usually contain a foam-like mixture of water and carbon dioxide. Class B extinguishers are intended for use on liquids or grease. Class C extinguishers are used on electrical fires. See also: fire-suppression system - Halon - fire alarm - fire hydrant - fire engine - arson Halon fire exinguisher This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.