The study analyzed the levels of a large number of pollutants in the ambient air of a room in an office building during the presence of three smokers using electronic cigarettes. The room was moderately ventilated at 0.56 air changes per hour.

For example, one of the major problems in some of the previous survey studies of electronic cigarettes (the ones cited by Stan Glantz, for example) is that they fail to control for a major confounder: the level of a smoker's addiction to smoking and motivation to quit. Some of the studies that Glantz has cited to show that e-cigarettes are ineffective for smoking cessation compare users of e-cigarettes and non-users of e-cigarettes. In two of these studies, those who did not use e-cigarettes had higher quit rates.

On his Twitter feed, Dr. Simon Chapman also attacked Big Tobacco for running this ad, accusing Lorillard of "viraling" this ad "to teens."

LAST：Beautiful Colored Design Ego K Battery Electronic Cigarette Ce4 Ce5 Ce6 On Sale |NEXT：2014 china manufacture high quality new design portable e cigarette