Air filter for cooking apparatus

Claim 1

Apparatus for filtering air from a food cooking apparatus utilized within a building comprising: a hood extending over said cooking apparatus for receiving heated air containing contaminants flowing upwardly therefrom during a cooking operation; an air filtering system within said hood for removing said contaminants from said heated air, said air filter system including a filter and, spaced thereabove, a prefilter and electrostatic ionizer, said hood also having an opening therein for returning said heated air into said building after said contaminants have been removed; a support structure for carrying said hood above said cooking apparatus straddling said cooking apparatus, said support structure including a base with spaced forwardly extending horizontal supports between which the cooking apparatus may be positioned and spaced rearwardly extending horizontal supports; a fire extinguisher carried within a housing mounted and extending between the rearwardly extending supports at the base providing a counterbalancing of the weight of the hood on the opposite side of the vertical support and adding stability to the apparatus; and a first fire extinguisher nozzle located between the filter and cooking apparatus, a second fire extinguisher nozzle located between the filter apparatus and the pre-filter and a third nozzle located above the ionizer with piping coupling the first, second and third nozzles to the fire extinguisher.