Smoking VS Vaping, the facts. Prime Vapes UK E Cigarette vs Vaporizer Vape Vet Store Kids Health Info : Vaping and e cigarettes What's in an E Cigarette? American Lung Association 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.