Virtual puff or virtual cure

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I've just read on the web of a new device to help smokers quit smoking. It is E-cigarettes which has become more popular among smokers who want to quite the habit or smoke less. It looks like the real thing except that it has a rechargeable battery, a cartridge and a mouthpiece and contains no tobacco. Apparently the US Food and Drug Administration has labelled it as tobacco products and not as drug-delivery devices. However this virtual smoke can still be harmful as the electronic butt contains some chemicals which have not been tested properly. Also the other methods of weaning oneself off smoking are available e.g. nicotine patches and gum or even telephone quit lines. So, what do you think about this new device and its success.