Smoking article and mouthpiece therefor

1. A mouthpiece attachable to a smoking article rod portion having a recess defined by a tubular element, the mouthpiece comprising an elongate cylindrical element, having adjacent first and second portions each extending partially along the length of the cylindrical element, the second portion forming a mouth-end of the mouthpiece and the first portion being arranged to be inserted into the recess by a user; and

an annular element formed from a molded material, the annular element having a larger external diameter than the first portion of the cylindrical element, and

wherein the cylindrical element comprises a cavity comprising particles of an aerosol modifying additive; and

the mouthpiece having a larger external diameter at the second portion than the internal diameter of the recess, and

wherein the first portion of the cylindrical element comprises an outer surface having at least one circumferentially extending raised area, and

wherein the circumferentially extending raised area extends around substantially the whole circumference of the cylindrical element, and

wherein the annular element extends beyond the mouth-end of the cylindrical element, forming a recess at the mouth-end of the mouthpiece.

2. A mouthpiece according to claim 1 , wherein the cylindrical element and/or annular element comprises a smoke modifying additive.

3. A mouthpiece according to claim 2 , wherein:

the smoke modifying additive is distributed throughout the cylindrical element and/or annular element;

wherein the smoke modifying additive is contained within at least one frangible capsule;

wherein the smoke modifying additive comprises a botanical additive;

wherein the smoke modifying additive comprises an adsorbent; and/or

wherein the additive is loaded on a thread extending through the cylindrical element and/or annular element.

4. A mouthpiece according to claim 1 , wherein the annular element is attached to the cylindrical element using an adhesive.

5. A mouthpiece according to claim 1 , wherein the first portion of the cylindrical element comprises an outer surface having at least one raised area.

6. A mouthpiece according to claim 5 , wherein the at least one raised area is formed by embossing an outer surface of the cylindrical element.

7. A mouthpiece according to claim 1 , wherein the cylindrical element and the annular element have the same length, and/or wherein the body of the cylindrical element comprises fibrous filtration material.

8. A smoking article comprising:

a smoking article rod portion comprising a tubular element defining a recess; and

a mouthpiece according to claim 1 ,

wherein the annular element has a larger external diameter than the internal diameter of the recess.

9. A smoking article according to claim 8 , wherein the internal diameter and/or length of the recess and the external diameter and/or length of the first portion of the cylindrical element are arranged to substantially correspond such that the first portion of the cylindrical element can be received within and substantially fill the recess.

10. A smoking article according to claim 8 , wherein the first portion of the cylindrical element comprises an outer surface having at least one raised area and wherein the at least one raised area is arranged to engage with an inner surface of the recess and provides a resistance to movement of the first portion of the cylindrical element within the recess and is arranged to provide a lower resistance to movement of the cylindrical element into the recess than out of the recess.

11. A smoking article according to claim 10 , wherein the at least one circumferentially extending raised area is configured to engage with an inner surface of the corresponding recess to prevent or restrict air flow between the inner surface of the corresponding recess and the outer surface of the cylindrical element.

12. A mouthpiece according to claim 1 , wherein the cylindrical element and/or annular element comprises a smoke modifying additive.