Filter components, filters, smoking articles, and related methods, all for the controlled delivery of aerosols

A filter component for a smoking article, the filter component comprising the following:

• a first filter segment for locating at a rod end of the smoking article and fabricated from a low pressure drop material having high permeability forming a first outer diameter;
• a hollow tubular element disposed within said first filter segment and fabricated of an infinite pressure drop material having no permeability forming an unobstructed interior passage having an inner diameter greater than about 1.55 mm, wherein a length of the hollow tubular element is in the range of about 5 mm to about 12 mm;
• and
• a second filter segment for locating at a mouth end of the smoking article and fabricated from cellulose acetate, the second filter segment forming a second outer diameter into which a plurality of ventilation holes penetrate,
• wherein an abutment pressure between the first filter segment and the second filter segment is less than about 10 mm water, and
• wherein a combined length of the first filter segment and the second filter segment is in the range of about 21 mm to about 27 mm.