Many people believe that vaping is less harmful than smoking, but that's a common misconception. In fact, in addition to nicotine, vapes can contain toxic chemicals that could be linked to cancer, Vaping Safety, Smoking, Dangers, Pros, Cons, Debate, E cigarettes, & Tobacco Britannica Second hand vaping exposure very low compared to second hand smoking UCL News UCL University College London Vaping vs. Smoking: Is One Really Safer Than the Other? What science says about vaping risks The Examination Does Vaping Cause Lung Cancer? What We Know (and Still Don't)