Class B extinguishers are designed for use on what type of materials?

Class B extinguishers are specifically designed to combat fires that involve flammable liquids, which include substances such as gasoline, oil, grease, and solvents. These materials can ignite and burn quickly, often spreading flames rapidly if not addressed properly. Class B extinguishers effectively use agents like foam, dry chemical, or carbon dioxide to suppress these fires by interrupting the combustion process, either by cooling the flames or coating the fuel to prevent oxygen from reaching it.

Understanding the types of combustible materials associated with different extinguisher classes is crucial for effective fire safety management. For example, while Class A extinguishers are meant for ordinary combustibles like wood and paper, Class B is strictly for flammable liquids. Choosing the right extinguisher is essential in ensuring quick and effective response to various types of fires.