Cigarette filter

A cigarette comprising a tobacco rod connected to a filter element having two ends and a cross-sectional area, said filter element comprising at least first and second separately formed filter segments positioned in longitudinal abutting relation, said first filter segment having a mouth end and comprising a gathered web of a paper including a carbonaceous material, the paper being gathered so as to form a plurality of longitudinal channels each having a longitudinal axis, each channel being open from end to end of said first filter segment alone the longitudinal axis thereof, each channel further having a cross-sectional void area, the total cross-sectional void area of said open channels comprising more than about 5 percent of the cross-sectional area of the first filter segment such that at least some mainstream smoke from the tobacco rod passes through the open channels in the first filter segment, the cross-sectional area of the first filter segment being entirely filled with the carbonaceous paper material and said open channels, said second filter segment comprising a filamentary tow material abutting the mouth end of the first filter segment, said second filter segment having a draw resistance such that the cigarette has a total pressure drop of between about 50 to about 200 mm of water at 17.5 cc/sec. air