E Cigarette How E Cigarettes Work, Health Risks & Teen Use Which is more harmful: e Cigarettes or regular cigarettes? 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, E CIGARETTE definition in American English Collins English Dictionary What is e Cigarette and Associated Health Risks IntechOpen E cigarettes are still 'a bet' and diseases may emerge within 10 or 20 years, warns Imperial College Clear The Air News Tobacco Blog Clear The Air News Tobacco Blog