A mouthpiece for a smoking device is provided. The mouthpiece comprises a porous substrate. The porous surface comprises a wall having an outer surface having an outer cross-sectional shape and an inner surface having an inner cross-sectional shape. The inner surface defines a hollow interior space. A wall thickness is defined by the outer and inner surfaces. The porous substrate has a specific hardness of at least about 1.5 hardness % per weight (g) per length (mm) of the porous substrate. The porous substrate has a porosity of about 50% to about 70%. The inner and outer surfaces provide a wall thickness of about 20% to 60% of an area defined by the outer cross-sectional shape.

The present disclosure relates to an article (1) for use in a non-combustible aerosol provision system, the article comprising: an aerosol generating material (3), and a downstream portion (6) located downstream of the aerosol generating material, wherein the downstream portion comprises a body of material having a volume of at least 115 mm3 and wherein said body of material comprises cellulose. The present disclosure also relates to an article for use in aerosol provision system, the article comprising: an aerosol generating material, and a downstream portion located downstream of the aerosol generating material, wherein the downstream portion N comprises a body of material and a tubular element (20) located within the body of material, the tubular element comprising a cavity. The present disclosure also relates to an article for use in aerosol provision system, the article comprising: an aerosol generating material, and a downstream portion located downstream of the aerosol generating material, wherein the downstream portion comprises a body of material comprising cellulose, and wherein the downstream portion further comprises at least one aerosol modifying agent release component incorporated within the body of material.

An aerosol-generating article (10) comprising: an aerosol generating substrate (12); and a mouthpiece (14) disposed downstream of the aerosol-generating substrate (12). The mouthpiece (14) comprises a hollow tubular segment (24) at its downstream end defining a mouth end cavity (40), and the hollow tubular segment (24) comprises a hollow tube (31) of fibrous material, and a polymeric film (35) secured to the inner surface (311) of the hollow tube (31).

An aerosol-generating article is provided, including: a substrate portion containing aerosol-forming substrate; and a hollow tubular filter portion having an inner diameter of between 0.5 millimeters and 2 millimeters, and the aerosol-forming substrate including at least one aerosol-former selected from the group consisting of: polyhydric alcohols, esters of polyhydric alcohols, and aliphatic esters of mono-, di-, or polycarboxylic acids. A system for generating an aerosol is also provided, including an aerosol-generating device including a heating chamber and a heating element; and the aerosol-generating article, the aerosol-generating article being configured to be insertable into the heating chamber.

The forming apparatus comprises a forming device with a tubular element adapted to form continuous tow material into a continuous tubular rod. The forming device comprises a fluid compressor for generating pressurized fluid, the fluid compressor being in fluid connection with the tubular element to provide pressurized fluid to the continuous tubular rod to heat or cool the continuous tubular rod. The forming device further comprises several fluid conduits to provide pressurized fluid from the fluid compressor to several injection sites arranged along the transport path, wherein at least two fluid conduits of the several fluid conduits comprise a pressure control unit including a pressure sensor and a pressure influencer.

An article for use in a non-combustible aerosol provision system comprising an aerosol generating material comprising at least one aerosol forming material and a mouthpiece connected to the aerosol generating material, the mouthpiece comprising an upstream end adjacent to the aerosol generating material and a downstream end distal from the aerosol generating material, wherein the mouthpiece comprises a hollow tubular element formed from filamentary tow at the downstream end of the mouthpiece. There is also provided a system including the article and a non-combustible aerosol provision device for heating the aerosol generating material of the article, and a method of manufacturing articles for use in a non-combustible aerosol provision system.

A method of manufacturing a filter that includes providing a tube having a cylindrical wall and a hollow interior. The method forms a first indentation within the tube in which a first portion of the of the cylindrical wall concaves into the hollow interior, and forms a second indentation within the tube in which a second portion of the cylindrical wall concaves into the hollow interior. The first and second indentations create 1) a first chamber and a second chamber in the tube that are separated by both indentations and 2) a path within the hollow interior formed between the first and second indentations that fluidly couples both chambers together.

The forming apparatus comprises a forming device with a tubular element adapted to form continuous tow material into a continuous tubular rod. The forming device comprises a fluid compressor for generating pressurized fluid, the fluid compressor being in fluid connection with the tubular element to provide pressurized fluid to the continuous tubular rod to heat or cool the continuous tubular rod. The forming device further comprises several fluid conduits to provide pressurized fluid from the fluid compressor to several injection sites arranged along the transport path, wherein at least two fluid conduits of the several fluid conduits comprise a pressure control unit including a pressure sensor and a pressure influencer.

A die or die assembly for forming a bundle of fibres into a rod or tube comprises a body (84) defining a passage 86) for conducting the bundle fibres through the die from an inlet to an outlet, a constriction (91) in the passage having an entrance shaped to form the fibres of the bundle into a desired configuration as the bundle passes through the die, and one or more conduits (92) through which a treatment fluid e.g. steam, for curing the bundle of fibres may be introduced into the passage, and wherein at last one conduit is arranged to discharge fluid in the immediate vicinity of the entrance to the constriction to facilitate passage of the fibres through the die and reduce the risk of blockage.

A device for filtering smoke, in particular tobacco and/or cannabis cigarette filters, comprising a jacket, in which jacket there are provided at least a first portion, a second portion and a third portion, the second portion being arranged between the first portion and the third portion, wherein in the first section a first nonwoven filter material, in the second section a porous filter material, and in the third section a second nonwoven filter material being provided in the third section; wherein a fourth section is provided in the jacket, wherein the third section is arranged between the second section and the fourth section, and wherein the fourth section is arranged such that, when flowing through the jacket, a pressure drop across the fourth section is lower than a pressure drop across the third section.