Flavor generating article

A smoking article for delivering to a smoker a tobacco flavor substance, said article comprising:

• a plurality of electrical heating elements disposed along a permanent cavity;
• a source of electrical energy for powering said plurality of electrical heating elements;
• control means for applying said electrical energy to said electrical heating elements to selectively heat at least one of said plurality of electrical heating elements;
• and
• a removable tobacco flavor unit comprising:
• a carrier having a first end and a second end and having a first surface and a second surface, the first surface defining a flavorant cavity located between said first end and said second end, wherein the second surface is disposed adjacent the plurality of electrical heating elements;
• a filter operative upon the predetermined quantity of tobacco flavor substance prior to delivery to the smoker;
• tobacco flavor medium disposed on the first surface of said carrier;
• wherein when any one of said plurality of electrical heating elements is activated, a respective fraction of said tobacco flavor medium in thermal transfer relationship with said one of said heating means is heated, generating a predetermined quantity of tobacco flavor substance in said flavorant cavity for delivery to the smoker.