What are Different Classes Of Fire Extinguishers?

Understanding Fire Extinguisher Classes

Fire extinguishers come in different classes, each rated for specific types of fires. Class A extinguishers are designed for ordinary combustibles such as paper, wood, and cloth. These extinguishers are effective on fires involving solid materials and are often the most common type found in homes. Class A extinguishers typically feature a red label and can be used on fires rated as “A”.

Class B and Class C Extinguishers

Class B extinguishers are rated for flammable liquids and gases, such as gasoline or paint. These extinguishers are often blue-colored and use foams or dry chemicals to smother the fire. Class C extinguishers are designed for electrical fires, such as those involving appliances or wiring. These extinguishers are often red or blue and use non-conductive agents to prevent electrical shock. Class B and Class C extinguishers must be used with caution and following specific guidelines to avoid accidents.

Class D and Class K Extinguishers

Class D extinguishers are designed for fires involving combustible metals such as magnesium, titanium, and sodium. These extinguishers are typically green or yellow and use dry powders to smother the fire. Class K extinguishers are designed for cooking oil and grease fires in commercial kitchens. These extinguishers are often red or blue and use wet chemical agents to cool the fire and prevent re-ignition. It’s essential to choose the right fire extinguisher for your specific needs and to follow local regulations and guidelines for proper installation and maintenance.