How Electronic Cigarettes Work HowStuffWorks Electronic Cigarette ecig e cig How E Cigarettes Work E Cigarettes Vaping with Juul & Other Electronic Cigarettes How to Enjoy Vaping (E Cigarettes): 11 Steps (with Pictures) 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.