E-cigarettes are known by many different names.Bystanders can also breathe in this aerosol when the user exhales into the air. Users inhale this aerosol into their lungs. E-cigarettes produce an aerosol by heating a liquid that usually contains nicotine-the addictive drug in regular cigarettes, cigars, and other tobacco products-flavorings, and other chemicals that help to make the aerosol.Most have a battery, a heating element, and a place to hold a liquid. E-cigarettes come in many shapes and sizes.
