5 Vaping Facts You Need to Know Johns Hopkins Medicine E Cigarettes, Vapes, and other Electronic Nicotine Delivery Systems (ENDS) FDA Illustration of the four generations of e cigarette or vaping products. Download Scientific Diagram Vaping is on the rise. While e cigarettes don't contain tobacco, they may still contain many of the same toxic and cancer causing chemicals found in regular cigarettes. This includes: Acrolein (weed Massachusetts new vaping campaign done with student input masslive.com