Other synonyms used to refer to electronic cigarettes are personal vaporizer, e-cigs, e-cigarettes and smokeless cigarettes. These cigarettes are different from the normal ones in that they do not produce smoke. These act as alternatives to smoking. Electronic cigarettes work with the use of an appliance powered by a battery. The cigarettes contain a liquid also known as e-juice with nicotine in it. The device heats up the liquid to produce vapor. The smoker then inhales the vapor in the nostrils for satisfaction