Patent ID: 7252696

Claim:
A fan coil media filter cabinet interposed between a fan coil unit and the ducted system return air outlet and the fan coil return air inlet, wherein said cabinet includes: an inner liner that includes a top panel, a bottom panel, a back panel, and a front panel that contains a door opening, said panels being co-joined to form an open-sided frame; a three-sided outer shell having a top wall, a bottom wall, and a back wall that is joined to the inner liner so that the top wall, the bottom wall, and back wall are adjacent to the top panel, the bottom panel, and the back panel of the inner liner to form a space between the adjacent walls and panels; an insulating material filling the space between the adjacent walls and panels; fastening means for securing the outer shell of the cabinet to the return air duct of a furnace, and flanges extending outwardly from the inner liner top, bottom, and back panels, said flanges engaging along their entire length with the inner walls of the respective top bottom and back walls of said outer shell.