Abstract: A cigarette or cigar holder and filter, or a pipe insert, capable of removing tar and nicotine products from tobacco smoke combines a sloping, preferably conical condensate flow control target and trap with air cooling to permit smaller construction than previously available, at a cost that makes disposability practical.

Abstract: Conventional porous labyrinth type filtering is combined with ambient air and conduction of smoke past the filter element in a cigarette holder wherein a selected portion of the tar and nicotine products are to be removed from the cigarette smoke. In its preferred form, a generally cylindrical porous filter element formed with an axial recess opening at one end of the filter is provided with an outwardly extending flange which serves to prevent passage of smoke past the filter when the filter element is fitted into the cylindrical interior of a cigarette holder. The addition of flutes on the exterior surface of the filter element, and of bypass passages formed in the flange, and air inlet openings of the holder itself, provide a unit which can serve as an element of a smoker's withdrawal kit or as a disposable holder for a smoker whose objective is to minimize tar and nicotine intake rather than to withdraw from the smoking habit.

Abstract: A tubular cigarette holder has a perforated barrier extending across its interior between the upstream cigarette receiving end of the tube and the downstream or outlet end. Ambient air is introduced in parallel with cigarette smoke through a passageway formed as one or more grooves in the inner wall of the tube at the cigarette receiving end. A rib formed on the inner wall in parallel with the groove indents the wall of the cigarettes to prevent cigarettes from entering and blocking the grooves. A tar collector depends from the barrier such that it will function to collect tar.

Abstract: A cigarette holder is disclosed which contains a filtering element in a cavity within the barrel of the holder. The filter element is provided with a flange that extends from the element and divides the cavity into an upstream filtering chamber and a downstream storage and filter chamber. Conformations in the flange permit communication from the upstream to the downstream side of the cavity. Smoke enters the filter cavity through a restricted opening where it is made to pass at high velocity. Thereafter, the smoke is permitted to expand and cool such that the tars and nicotine in the smoke are condensed. The chamber and the filtering element are arranged so that the smoke swirls to impart a kinetic energy to the condensate which results in an inability to follow the conformations past the flange whereby the condensate is made to impinge upon the surfaces of the filter element where it is condensed.