Abstract: This invention provides a smoke vector for a cigarette, and the like, for modifying or altering the mainstream smoke at or near the combustion zone or burning zone. The smoke vector comprises a thin walled elongated, impervious tube-like member or vector which is hollow and empty. The vector extends longitudinally through the cigarette and terminates with an impervious mouth end. During an indrawn breath by the smoker, the products of the combustion of tobacco in systemic heat is below the formation temperatures of temperature dependant hazardous chemicals.