Which type of fire extinguisher is effective against flammable liquids?

The effectiveness of a fire extinguisher against flammable liquids is specifically associated with Class B extinguishers. Class B extinguishers are designed to combat fires that involve flammable liquids, such as gasoline, oil, grease, and similar substances. These extinguishers typically contain agents such as foam, carbon dioxide (CO2), dry chemical powders, or halon, which work to extinguish fires by smothering the flames, cooling the burning liquid, or interrupting the chemical reaction that fuels the fire.

Understanding the classification of fire extinguishers is pivotal in workplace safety and emergency response. Class A extinguishers are meant for ordinary combustibles like wood and paper, while Class C extinguishers are for electrical fires. Class D extinguishers are suited for combustible metals. Each class serves a specific purpose, making it crucial to use the correct type for the type of fire encountered to ensure effective suppression and safety.