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Electronic Cigarette


Updated April 05, 2013

An electronic cigarette looks like a cigarette made from tobacco but actually has just one thing in common with the real thing: nicotine.

An electronic cigarette typically consists of a white cylindrical tube with a brown filter and a red, glowing tip. Instead of tobacco, however, e-cigarettes are filled with liquid nicotine. When smokers draw on the business end of the tube, a battery heats the nicotine, which creates a water-based nicotine vapor that is inhaled into the lungs. The excess cigarette-like "smoke" vapor is then emitted from the end of the e-cigarette, completing the cigarette smoking illusion.

See also: Electronic Cigarettes as Quit Aids?

Also Known As: e-cigarette, e-cig
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