Most e cigarette flavors fall under new U.S. ban, but advocates say it's not enough PBS News Pod e cigarettes less harmful than regular cigarettes, new study finds Brown University An e cigarette is a battery operated device that heats liquid nicotine, flavoring, and other additives to create an aerosol. This JAMA Patient Page describes e cigarettes and the potential health effects of vaping. https: ja.ma 4dbZqrL How Many Puffs of Vape is Equal to 1 Cigarette? Ecigator