Electronic cigarettes (e-cigarettes) is the name given to a group of battery-operated tobacco products that allow users to inhale aerosolized liquid (e-juice) containing nicotine and other substances.
The terms “e-cigarettes” and “e-cigs” are often used for electronic cigarettes, as well as for e-pens, e-pipes, e-hookah, and e-cigars. These products are also sometimes called “JUULs” (after a branded e-cigarette of the same name), “vapes,” and “vape pens.”
Unlike traditional cigarettes, e-cigarettes are made up of a battery-operated heating part — a cartridge (unit) that typically holds nicotine and other chemicals that change into a chemical-filled aerosol when heated.