Aerosol-generating article with tubular element

An aerosol-generating article comprising a plurality of elements assembled in the form of a rod, the elements comprising:

• a first element comprising an aerosol-generating substrate;
• and
• a tubular element positioned upstream or downstream of the first element, the tubular element comprising:
• a tubular body defining a cavity extending from a first end of the tubular body to a second end of the tubular body, and
• a folded end portion forming a first end wall at the first end of the tubular body, the first end wall delimiting an opening for airflow between the cavity and an exterior of the tubular element,
• wherein the cavity in the tubular element is an empty cavity.

An aerosol-generating article comprising a plurality of elements assembled in the form of a rod, the elements comprising:

• a first element comprising an aerosol-generating substrate;
• and
• a tubular element positioned upstream or downstream of the first element, the tubular element comprising:
• a tubular body defining a cavity extending from a first end of the tubular body to a second end of the tubular body, and
• a folded end portion forming a first end wall at the first end of the tubular body, the first end wall delimiting an opening for airflow between the cavity and an exterior of the tubular element,
• wherein the aerosol-generating article further comprises an outer wrapper circumscribing at least the tubular element.

An aerosol-generating article comprising a plurality of elements assembled in the form of a rod, the elements comprising:

• a first element comprising an aerosol-generating substrate;
• and
• a tubular element positioned fully upstream or fully downstream of the first element, the tubular element comprising:
• a tubular body defining a cavity extending from a first end of the tubular body to a second end of the tubular body, and
• a folded end portion forming a first end wall at the first end of the tubular body, the first end wall delimiting an opening for airflow between the cavity and an exterior of the tubular element.