Where are inspectors most likely to find a wet chemical fire extinguishing system installed?

Wet chemical fire extinguishing systems are specifically designed to combat fires involving cooking materials, particularly in commercial kitchens. These systems utilize a wet chemical agent that cools the flames and forms a barrier between the fuel and the oxygen, effectively suppressing cooking fires that can occur with oils and fats.

Commercial range hoods are critical components in restaurant and food preparation facilities where cooking occurs. They not only ventilate smoke and heat but also often house the wet chemical fire extinguishing systems to protect against grease fires that can ignite in these environments.

While other locations mentioned may have fire hazards, they do not specifically correlate with the typical applications of wet chemical extinguishing systems. For instance, textile storage areas, paint spray booths, and cold-storage units involve different types of hazards that would require different forms of fire suppression systems. Therefore, having a wet chemical fire extinguishing system installed in commercial range hoods is the most appropriate and effective safety measure, demonstrating why this option is the correct choice.