An electronic cigarette (e-cig or e-cigarette), electronic vaping device, personal vaporizer (PV), digital vapor device or electronic nicotine delivery system (ENDS) (not to be confused with smokeless cigarettes) is a battery-powered device which simulates tobacco smoking patented in 1963 by Herbert A. Gilbert. It generally uses a heating element known as an atomizer, that vaporizes a liquid solution. Some solutions contain a mixture of nicotine and flavorings, while others release a flavored vapor without nicotine. Many are designed to simulate smoking implements, such as cigarettes or cigars, in their use and/or appearance, while others are considerably different in appearance.
The benefits and risks of electronic cigarette use are uncertain. They may carry a risk of developing nicotine addiction, and their regulation is the subject of ongoing debate.
Electronic cigarette sales increased from 50,000 in 2008 to 3.5 million in 2012. As of 2011, in the United States, one in five adults who smoke have tried electronic cigarettes.In a UK survey conducted in 2013 of more than 12,000 adults, 11% of regular smokers in the sample identified themselves as using electronic cigarettes and 24% stated that they had used them in the past. Among est non-smokers in the same sample, 1% said they had tried them and 0% stated that they were currently using them.
Different types of Electronic cigarettes:
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