What agent is used for Class K fires?

Class K fires involve combustible oils and fats typically found in kitchens, such as cooking oils. The appropriate agent for suppressing these types of fires is wet chemical. Wet chemical agents work effectively by cooling the burning material and preventing re-ignition through the formation of a layer of emulsification. This process is distinct from the action of other agents, which may not properly address the unique characteristics of Class K fires.

Wet chemicals, often potassium-based, are specifically designed to interact with cooking oils to form a soapy layer that smothers the fire, effectively reducing the risk of flare-ups. This makes them ideal for kitchen environments where such fires are more likely to occur. Other agents, while useful for different types of fires, may not provide the necessary cooling and smothering effects needed to safely and effectively extinguish Class K fires.