What type of fires is a class K extinguisher specifically intended to combat?

A class K extinguisher is specifically designed to combat fires that involve cooking oils and fats, particularly those found in commercial kitchens. These types of fires are unique because they burn at higher temperatures and have different chemical properties compared to other common fire types. Class K extinguishers utilize a wet chemical agent that effectively cools and suppresses these fires by creating a barrier between the fire and the fuel source, which is crucial in preventing flare-ups and re-ignition.

Understanding the purpose of class K extinguishers is important for anyone working in environments where cooking occurs. Unlike extinguishers meant for electrical fires, flammable gas fires, or typical solids like wood and paper, class K extinguishers fill a specific need in addressing the hazards associated with high-temperature cooking mediums.