The difference between smoking, vaping, and using heated tobacco, according to a new scientific study 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. Two Different Heated Tobacco Products vs. Cigarettes: Comparison of Nicotine Delivery and Subjective Effects in Experienced Users Heated Tobacco Products, Cigarettes, and E Cigarettes: What's the Difference PMI Science Heated Tobacco Products Smoking and Tobacco Use CDC