Which type of extinguishing agent is suitable for extinguishing Class K fires?

Class K fires involve cooking oils and fats, typically found in commercial kitchens. These types of fires require specialized extinguishing agents that can effectively cool the burning oils and prevent re-ignition.

The wet chemical agent is specifically formulated for Class K fires. It works by cooling the burning material and forming a barrier on top of the oils, which helps to suppress the flames. Additionally, the agent reacts with the fats to create a soap-like foam that seals in the fire, limiting oxygen and reducing the possibility of reignition.

In contrast, water can potentially spread the fire due to the nature of oils, making it an ineffective choice for Class K fires. Dry chemical extinguishers are more suited for Class B and C fires, while foam extinguishers are typically used for flammable liquids but do not address the unique challenges presented by cooking oils. Therefore, the wet chemical is the appropriate extinguishing agent for safely and effectively handling Class K fires.