Electronic cigarettes, also known as e-cigarettes, are battery-operated devices that emit doses of nicotine and food-grade flavors by vaporazing propylene glycol and vegetable glycerin. Users can buy a variety of flavors, including those that mimic traditional cigarettes, or foods, such as strawberry or cheesecake. Electronic cigarette users -- or Vapors -- see an advantage to vaping electronic cigarettes rather than smoking traditional tobacco cigarettes. "Most of our clients switch to electronic cigarettes for health reasons," according to Ivan Furre, Vice President of ecigexpress.com