| The burning tobacco on the end of a buy cigarettes heats the air drawn through it. The hot air then passes over the unburned tobacco in the discount cigarettes rod, causing nicotine and other volatile components to evaporate. As the air cools while being drawn through the cigarette, some of these volatile components, including nicotine, condense onto smoke particles. A smoker inhales this nicotine-rich aerosol, which happens to have a mean particle diameter in the submicron range, permitting efficient alveolar deposition and subsequent extremely rapid absorption into the systemic blood. |