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, About E Cigarettes (Vapes) Smoking and Tobacco Use CDC The truth about e cigarettes IQAir IQAir Canada 5 Things You Need to Know About E Cigarettes Good Morning America Cigarette lectronique Wikipdia Electronic cigarette Wikipedia