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 FDA permits the marketing of an e cigarette for the first time, paving the way for vaping products to be legally sold in the U.S. Roswell Park Comprehensive Cancer Center Buffalo, First genome wide comparison of vapers and smokers finds similar DNA changes linked to disease risk E cigarette Characteristics, Safety Issues, & Regulation Britannica E liquide : quivalence nicotine cigarette lectronique d'un paquet