What type of agent is Class K fire extinguishers specifically designed for?

Class K fire extinguishers are specifically designed to combat fires that involve cooking oils and fats, which are common in commercial kitchens and food preparation areas. These types of fires require a unique extinguishing agent because cooking oils can burn at very high temperatures and may not be effectively smothered by water or standard extinguishing agents used for other classes of fires.

In commercial cooking environments, the use of Class K extinguishers is critical for safety as they contain agents that are formulated to cool the fire and create a barrier between the oxygen and the fuel, effectively smothering the flames. This capability makes them particularly suited for the challenges posed by these unique fire hazards, ensuring that kitchen fires can be managed quickly and safely.

The other options, while representing different types of fire hazards, do not align with the specific application of Class K extinguishers. Ordinary combustibles (Class A), flammable liquids (Class B), and electrical fires (Class C) are each addressed with other classes of fire extinguishers specifically designed for those materials and circumstances.