An electronic cigarette or e-cigarette is a handheld electronic device that vaporizes a flavored liquid. The user inhales the vapor. Using e-cigarettes is often called vaping The fluid in the e-cigarette, called e-liquid is usually made of nicotine, propylene glycol, glycerine, and flavorings.
Positions of medical organizations
Medical organizations differ regarding the health implications of e-cigarette use Many medical organizations have made statements about their health and safety. There is general agreement that e-cigarettes expose users to fewer toxicants than tobacco International organizations such as the WHO and those from the US have hesitated to recommend e-cigarettes for quitting smoking, because of limited evidence of effectiveness and safety, Some from the UK have recommended their use by smokers unwilling or unable to quit.