E cigarette Characteristics, Safety Issues, & Regulation Britannica Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA) Electronic cigarettes (e cigarettes) are sometimes called e cigs, vapes, vape pens, and electronic nicotine delivery systems (ENDS). E cigarettes come in many shapes and sizes. Most e cigarettes contain nicotine. Get the facts about e cigarettes, The Health Risks Of E Cigarettes Versus Traditional Cigarettes Henry Ford Health Detroit, MI How Electronic Cigarettes Work HowStuffWorks Electronic cigarette Wikipedia