In order to ensure the peak performance of the kitchen exhaust system, and to maintain its compliance with local fire codes, the system needs to be cleaned at regular intervals. A normal cleaning consists of sending a two man crew to steam clean the exhaust system, which includes the fan blades, hood, and all accessible duct work. The cleaning also covers the interior and exterior of the hood, filter frames, hood drip trays, metal back splash, and fire system pipes. American Filter crews are fully bonded and insured. Certificates of Insurance are available upon request.