Facts about Vaping can be very vaporous ScienceUpFirst Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Flavourings make e cigarettes more harmful. Another good reason to ban them SEATCA The Danger of Chemicals Used in Vape Liquid The Science Blog Vaping refers to the use of an electronic cigarette, or other vaping device, to breathe in an aerosol, often containing nicotine, flavouring and other chemicals. Unlike cigarette smoking, vaping doesn't burn tobacco. The 101 on e Cigarettes Infographic American Heart Association