What is the primary function of Class K extinguishers?

The primary function of Class K extinguishers is to extinguish fires involving cooking oils and fats. This classification specifically addresses the unique challenges posed by kitchen fires, particularly those involving vegetable oils, animal fats, and other commonly used cooking substances. Class K extinguishers are designed to effectively cool the burning materials and chemically react with the fats to prevent reignition, which is essential in a kitchen environment where such fires can escalate rapidly.

In contrast, Class K extinguishers are not intended for addressing electrical fires, flammable metals, or ordinary combustibles, which require different types of extinguishing agents to be effective and safe. The specialized design of Class K extinguishers is crucial for ensuring safety in commercial kitchens and places where cooking oils are prevalent, thereby providing the appropriate response to these specific fire hazards.