A Class K portable extinguisher is typically used in which setting?

A Class K portable extinguisher is typically used in which setting?

• A. Commercial kitchen
• B. Residential kitchen
• C. Industrial plant
• D. Classroom

Answer: (A)

Class K extinguishers are designed for fires involving cooking oils and fats, which are common in commercial kitchens with fryers and other high-heat cooking equipment. The wet chemical agent they use, usually potassium acetate, saponifies fats to form a soapy layer that cools the oil and creates a barrier between the fuel and the flame, helping to prevent reignition. Because of this specialized use, they’re the standard choice for commercial kitchen environments rather than residential kitchens, classrooms, or many industrial settings that deal with different fuels and hazards.

Class K extinguishers are designed for fires involving cooking oils and fats, which are common in commercial kitchens with fryers and other high-heat cooking equipment. The wet chemical agent they use, usually potassium acetate, saponifies fats to form a soapy layer that cools the oil and creates a barrier between the fuel and the flame, helping to prevent reignition. Because of this specialized use, they’re the standard choice for commercial kitchen environments rather than residential kitchens, classrooms, or many industrial settings that deal with different fuels and hazards.