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| How Does It Work? |
| Fire Extinguisher Sizes | Portable extinguishers are also rated for the size of fire they can handle. This rating is expressed as a number from 1 to 40 for Class A fires and from 1 to 640 for Class B fires. This rating will appear on the label-- 2A:10B:C, for example. The larger the numbers, the larger the fire of a specific class on which the extinguisher can be used (but higher-rated models are often heavier - make sure you can hold and operate an extinguisher before you buy it). No number accompanies an extinguisher's Class C rating. The C on the label indicates only that the extinguisher is safe to use on electrical fires.
Extinguishers for Class D fires must match the type of metal that is burning. These extinguishers do not use numerical ratings. Extinguishers for Class D fires are labeled with a list detailing the metals that match the unit's extinguishing agent.
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Mattoon . IL . 61938-9375 . 1.888. GO FESSI (1.888.463.3774) |
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| Industry Links |
 | Occupational Safety & Health Administration |  | National Fire Protection Association |  | National Association of Fire Equipment Distributors |  | FireExtinguisher.com |  | Fire Equipment Manufacturers Association |
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