human
I've been hearing a lot about e-cigarettes, but I'm not sure what they are.
assistant
Electronic cigarettes (e-cigarettes) are devices that use battery-powered cartridges to deliver nicotine and other chemicals in aerosol form. They typically contain a heating element that vaporizes the liquid solution, producing an inhalable mist. The main benefit of e-cigarettes is that they provide users with nicotine without the harmful side effects of smoking.