Figuring out the optimum degree of exhaust hood cleaning that your kitchen or restaurant requires takes years of experience. It is typically best to consult with a reputable and licensed kitchen exhaust hood inspector who can consider your system and cooking habits to offer a suggestion on a cleansing and maintenance schedule. Some commercial kitchen and restaurant hood cleaners provide exhaust hood inspection companies without spending a dime, and a few will even provide footage of the internal ductwork. Holtkoetter International, Inc., a manufacturer of residential lighting based in St. Paul, Minn., plans to release a number of models of…