What is an e cigarette? BBC Science Focus Magazine The truth about vape pens Central Times How to Safely Dispose of E Cigarettes: Information for Individuals US EPA 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, What to Know About Electronic Cigarettes (E Cigarettes)