Ideal for jewelers located in areas without easy access to outside ductwork. Features a three-stage filtration system that captures fumes and/or particles, then recirculates clean air back into the room to save on heating and Air Conditioning costs. You would install this Burnout Fume Hood (854-1525) on the wall behind your burnout furnace. There is an optional stand measuring 22-1/2" W x 12" D x 25" H (please see 8541527 to see if that would be useful to your specific situation). Along with the dust filter (854-2103) and the HEPA filter(854-2079) the Burnout Fume hood has a metal-frame filter container that holds a stage-3 activated charcoal media (854-1527) specifically formulated for burnout fumes. Backed by a one-year manufacturer's warranty. Made in Canada. Media refills contains enough mixture for four refills.