Where does the filtering happen that removes all of nicotine ...or whatever?
Is this magic performed in the device itself? So what reaches the lungs of the smoker is nothing but water vapor?
So let's assume that the magic did it's thing. Why add anything at all? It would never reach the smoker.
Wait... Is the magic performed in the lungs of the smoker? Is 'vaping' a magical action in itself?
Oh, and there's a thing called Internet Search. Try searching for: e-cigarette drugs
The Heroin story, which you ignored, plus much more is out there...
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The makers of e-cigarettes say that the ingredients are “safe,” but inhaling a substance is not the same as swallowing it. There are questions about how safe it is to inhale some substances in the e-cigarette vapor into the lungs. E-cigarettes are not labeled with their ingredients, so the user doesn’t know what’s in them. The amounts of nicotine and other substances a person gets from each cartridge are also unclear.
A study done by the FDA found cancer-causing substances in half the e-cigarette samples tested. Other impurities were also found, including one sample with diethylene glycol, a toxic ingredient found in antifreeze.
Studies have shown that e-cigarettes can cause short-term lung changes that are much like those caused by regular cigarettes. But long-term health effects are still unclear. This is an active area of research, and the safety of these products is currently unknown.
Electronic cigarettes are designed to deliver nicotine, and nicotine is an addictive substance. This strongly suggests that e-cigarette use will lead to dependence, unless the user weans him or herself from them.
http://www.cancer.org/cancer/cancercauses/tobaccocancer/questionsaboutsmokingtobaccoandhealth/questions-about-smoking-tobacco-and-health-e-cigarettes
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