Is Vaping Bad For You? Side Effects, Risks, Nicotine, Marijuana 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, Is It Safe to Vape in the House? NVB Inc. Can You Vape Indoors? Vaping v smoking: Why the FDA is trying to limit access to flavoured e cigarettes New Scientist