What is the primary purpose of using wet chemical extinguishers?

The primary purpose of using wet chemical extinguishers is to suppress cooking oil fires. These extinguishers are specifically designed to combat fires that involve cooking oils and fats, which are common in kitchens and restaurant settings. The wet chemical agent works by creating a fine mist that cools the flames and forms a barrier between the oxygen and the fuel, effectively smothering the fire and preventing re-ignition.

Wet chemical extinguishers are highly effective for Class K fires, which specifically refer to fires involving cooking oils and fats. The formulation of the wet chemical not only extinguishes the fire but also reacts with the cooking oil to create a soapy layer that helps in smothering the flames. This makes them essential for ensuring safety in any environment where cooking is frequently performed.

Others options, while related to fire safety, do not accurately describe the specific purpose of wet chemical extinguishers. Although they might be effective for certain types of fires or situations, they lack the specialized components necessary to effectively address cooking oil fires like a wet chemical extinguisher does.