(New York, NY) -- New electronic cigarettes apparently cause changes in the lung function of people who use them.
A small study done in Greece finds changes in airways after people puffed on the e-cigarettes for five minutes.
They saw signs of airway constriction and inflammation.
The scientists who conducted the study say they aren't certain about the long-term effects of using the devices.
The electronic cigarettes deliver a stream of vaporized liquid nicotine and supposedly allow smoking without exposure to toxins.
A spokesman for the Tobacco Vapor Electronic Cigarette Association insists the e-cigarettes are much safer than traditional smokes.
He says they eliminate second-hand smoke.
(Copyright 2012 by VERTEXNews/Newsroom Solutions)