Tuesday, September 10, 2013

E-cigarettes raise new questions about smoking

When a friend sitting at my kitchen table pulled out what looked like a cigarette, I was about to direct her to the front porch. But then I realized that what she was blowing was an odorless vapor, not smoke. It was an electronic cigarette.
Electronic cigarettes come in a variety of shapes and models, but most consist of a battery, a heating element, and a liquid that
e-cigarettes
contains nicotine, propylene glycol and flavorings. The heating element warms and aerosolizes the liquid, turning it into a vapor the user inhales. Smoking an e-cigarette (called “vaping”), gives users a nicotine hit without exposing them, or those around them, to tobacco smoke. The lack of odor is one of the biggest selling points, says Craig Weiss, chief executive of NJoy electronic cigarettes.