Patent ID: 6986804

Claim:
A combination filter for filtering fluids flowing in a flow direction, comprising a flow channel particulate filtration media having a first face and a second face and a gas adsorbing filtration media, wherein said flow channel particulate filtration media comprises a plurality of flow channels directed in a flow direction and defined by inner surfaces, said flow channels having inlet openings through the first face and outlet openings through the second face of said flow channel particulate filtration media, wherein the inner surfaces of said flow channels at least in part are provided with structures protruding therefrom and forming the flow channels or extending into the flow channels or an electrical charge or a combination of both and wherein said gas adsorbing filtration media comprises a pad having a first face and a second face and width and length dimensions orthogonal with respect to each other and each individually to the flow direction and having a thickness dimension in the flow direction, said pad comprising a layer extending substantially perpendicular to the flow direction across the width and length dimensions of said pad.