Which class of fire extinguisher is suitable for grease fires?

Class B fire extinguishers are specifically designed for use on flammable liquids and gases, which include grease, oil, and solvents. In a situation where a grease fire occurs, it is crucial to use an extinguisher that effectively suppresses fires fueled by such substances. Class B extinguishers contain agents that can smother the flames without spreading the fire, making them the ideal choice for these types of fires.

Class A extinguishers are intended for ordinary combustibles like wood and paper, which are not suitable for grease fires. Class C extinguishers are designed for electrical fires, while Class D extinguishers are used for combustible metals, thus neither of these would be appropriate for grease-related incidents. In summary, Class B extinguishers are the most effective and recommended option for tackling grease fires, ensuring safe and effective firefighting in those situations.