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. Vaping vs Smoking How Vaporizers, E Cigs, and Cigarettes are Different Ecigator Vaping 101: How Do E Cigarettes Work? Ohio State Experts: Vaping Is Three Prong Health Threat