A smoking article, a filter and a method of manufacturing a smoking article

A filter for a smoking article comprising:

• a filter arrangement comprising a first filter section and a second filter section, the second filter section being located downstream of the first filter section;
• and
• a ventilation arrangement configured to provide a user controllable level of ventilation into the first filter section, wherein the filter comprises a first part and a second part and the level of ventilation can be selected by selecting a position of the second part relative to the first part;
• wherein a resistance to gaseous flow through the length of the second filter section is lower than a resistance to gaseous flow through the length of the first filter section;
• and
• the resistance to gaseous flow through the length of the filter arrangement remains substantially constant as the level of ventilation is varied.

A method of manufacturing a smoking article, the method comprising:

• forming a first filter section with a first resistance to gaseous flow through its length;
• forming a separate second filter section with a second resistance to gaseous flow through its length, wherein the second resistance to gaseous flow is lower than the first resistance to gaseous flow;
• and
• assembling the first filter section and second filter section with one or more additional components to form the smoking article such that the second filter section is located downstream of the first filter section in the smoking article, wherein the smoking article is configured to allow the ingress of a selectively variable amount of air.