The GW MisteryHood is the only UL-listed (UL199E) product of its kind in the world for efficient fire protection of kitchen appliances. The MisteryHood is fitted directly to a wet sprinkler system (NFPA13) for protection of high risk appliances like: Deep Fat Fryers and Tilt Skillets. The MisteryHood offers the benefits of proven high efficiency, ease of installation & servicing, short down-time if activated - and low initial and operational cost.