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Electronic Cigarette

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An electronic cigarette, or e-cigarette, runs on a battery, either disposable or rechargeable. The airflow sensor senses when you suck in air from the mouthpiece. The sensor tells the microprocessor to turn on the heating element and start the process that turns the nicotine solution into a vapor that you inhale. Many e-cigarettes have an LED (tiny light) at the end that glows red when you inhale.

ByHealthwise Staff
Primary Medical ReviewerKathleen Romito, MD - Family Medicine
Last RevisedJune 25, 2013

WebMD Medical Reference from Healthwise

Last Updated: June 25, 2013
This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.

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