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Classes of Fires

by | Jan 2, 2021 | FAQs

Fire fighters spraying a fire - one of four classes of fire

The Four Classes Of Fires From A to D


There are four classes of fires. All fire extinguishers are labeled, using standard symbols, for the classes of fires on which they can be used.

A red slash through any of the symbols tells you the extinguisher cannot be used on that class of fire.

A missing symbol tells you that the extinguisher has not been tested for a given class of fire, but may be used if an extinguisher labeled for that class of fire is not available.

Classes of Fires:

CLASS A – Ordinary combustibles such as wood, cloth, and paper.
CLASS B – Flammable liquids such as gasoline, oil, and oil-based paint.
CLASS C – Energized electrical equipment, including wiring, fuse boxes, circuit breakers, machinery and appliances.
CLASS D – Combustible metals such as magnesium or sodium.

If you have any questions about how to identify classes of fires, how to read and understand the symbols on fire extinguishers, or are interested in a free quote, feel free to call us to talk

Desert Fire is a Three Generation Family Business Serving the Coachella Valley since 1971.  Our continuing education keeps us abreast of new fire and safety methods and techniques. 

Whether you are starting a new business or just need an inspection, our goal is simple: to provide fast, professional service at competitive prices.

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