Patent ID: 7063733

Claim:
A filter member: comprising one layer of deodorizing filter, which is composed of a reticulated filter substrate having a skeleton comprising strands and a deodorizing agent adhered to a surface of the skeleton, and at least one layer of dust collecting filter laminated on at least one side thereof, with the resulting laminate being pleated, wherein said reticulated filter substrate is formed from one of polypropylene, polyethylene, polyester, and polyamide and said deodorizing agent used for said layer of deodorizing filter comprises spherical or spheroidal particles formed of at least one of petroleum pitch-based activated carbon, coconutshell-based activated carbon, pellet-formed activated carbon, wood-based activated carbon, natural or synthetic zeolite, SiO 2 , ZnO, TiO 2 , silica gel, activated clay, cation or anion exchange resin, manganese oxide, and alumina.