Different Types Of E Cigarettes Electronic Cigarettes. Types Of E cigarettes And Digital Vape Pen Smoking Vaping And Nicotine Png Reusable Cigarette FACT: Most e cigarette users also smoke cigarettes, a pattern known as dual use. This means the tobacco industry isn't helping people quit; it's sustaining addiction through another product. While the industry claims cigarette lectronique UofL study shows nicotine in e cigarettes may not be harmless, as some claim UofL News