Portable type wet chemical extinguishers are specialized handheld fire suppression devices designed primarily to combat Class K (also known as Class F) fires involving cooking oils and fats commonly found in commercial kitchens and food preparation areas. These extinguishers use a unique wet chemical agent—typically a potassium-based solution—that effectively cools the fire and creates a soapy foam layer through a process called saponification, which smothers the flames and prevents re-ignition.
Compact and easy to operate, portable wet chemical extinguishers feature a pressurized cylinder, a discharge nozzle or hose, and an activation lever or squeeze handle. They are highly effective against high-temperature grease fires, making them essential safety equipment in restaurants, cafeterias, and catering facilities.
Safe for use on kitchen fires, these extinguishers are not suitable for electrical or flammable liquid fires outside their intended class. Regular inspection and servicing are crucial to ensure readiness and compliance with fire safety standards.