A smoking article (10) includes a tobacco rod (12) having tobacco at a density|of greater than or equal to about 270 mg/cm3. The smoking article (10) also has a filter portion (14) having a length extending from a first end adjacent the tobacco rod (12) and a second end configured for insertion into a user's mouth. The filter portion (14) includes a first filter plug (20) in proximity to the first end, a second filter plug (22) in proximity to the second end, and a|support element (30) disposed between the first and second filter plugs. The filter portion (14) has one or more cavities between the first filter plug (20) and the second filter plug (22) that cumulatively occupy about 25% or more of the length of the filter portion (14), and has a filter efficiency of less than|or equal to about 40% efficiency.
