High concentrations of flavor chemicals are present in electronic cigarette refill fluids Scientific Reports About E Cigarettes (Vapes) Smoking and Tobacco Use CDC E Cigarettes Vaping Child Development and Health JUUL E Cigarettes Harrison County Health Department The Health Effects of Vaping Indoors Indoor Doctor 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