E-cigarettes or electronic cigarettes are also referred to as electronic nicotine delivery systems. They are battery powered devices that deliver nicotine and other chemicals in vapor format as opposed to smoke. The look of these devices can range from resembling a traditional cigarette to other items such as pipes, USB drives and more. E-cigarettes are considered to be safer than traditional cigarettes, but there is little knowledge about the long-term risks. As a result, growth of the use of electronic cigarettes keeps growing.

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