Abstract: An element for use in a smoking article, the element comprising a longitudinally extending core; wherein the longitudinally extending core comprises a filtering material; wherein the filtering material comprises a paper and/or other biodegradable material; and wherein the filtering material further comprising a hydrophobic material.

Abstract: A mouthpiece, filter or filter element comprising a longitudinally extending core of paper or other biodegradable (e.g., non-cellulose acetate containing) filtering material, a first wrapper engaged around the peripheral surface of the core, and a second wrapper engaged around the first wrapper, the first wrapper defining at least with the second wrapper a plurality of channels extending longitudinally from the upstream end of the mouthpiece, filter or filter element and/or a plurality of channels extending longitudinally from the downstream end of the mouthpiece, filter or filter element.

Abstract: A multi-segment filter comprising a first and second filter segment; wherein the first filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising embossed paper filtering material and/or embossed other biodegradable filtering material with a particulate additive embedded therein; and wherein the second filter segment comprises a longitudinally extending (e.g., substantially cylindrical) core comprising paper filtering material or other biodegradable filtering material.

Abstract: The present invention provides a mouthpiece or filter element (e.g., for a smoking article such as a cigarette, a tobacco heating product, a HNB product) comprising a longitudinally extending (e.g., substantially cylindrical) hollow tube of paper; a filler layer comprising paper filtering material and/or other biodegradable filtering material engaged around the hollow tube along the full (e.g., longitudinal) length of the hollow tube; and a wrapper (e.g., plugwrap) engaged around the filler layer along the full (e.g., longitudinal) length of the filler layer, wherein the hollow tube, the filler layer and the wrapper are the same length.

Abstract: There is disclosed a method for making a filter element comprising the steps of: advancing two or more sheets of filtering material in a longitudinal direction; separating the two or more sheets of longitudinally advancing filtering material; gathering the separated sheets of longitudinally advancing filtering material to form a partially gathered rod of filtering material having a longitudinally extending recess; inserting an additive release vessel into the longitudinally extending recess; gathering the filtering material around the additive release vessel to close the recess and thereby form a rod comprising a longitudinally extending core of filtering material and one or more additive release vessels.