E-cigarettes seem like the real stuff. You exhale, and there is a cloud which is pretty much the same as smoke. This is vapor, comparable to the fog we might encounter at concerts. Every e-cigarette has a battery and a cartridge that contains nicotine and flavorings. Cost and features may vary. You can find disposable e-cigarettes and also the ones containing refillable cartridges and a rechargeable battery.
Pros and Cons
There is an open discussion about pros and cons regarding e-cigarettes. Many people are concerned with the appearance of e-cigarettes while some other people (especially the people suffering from the chronic obstructive pulmonary disease) want to try them out as a healthier choice. Many of the people who are curious about this subject see e-cigarettes as a possible tool to help them quit smoking completely. People suffering from COPD will clearly benefit the most.
The biggest advantage over the classic cigarettes would be probably the consumption in public places. There are no current laws prohibiting people from using e-cigarettes in public.
There were a few types of research on the subject you may find interesting or convincing.
In one study, 40 tobacco-dependant smokers, allegedly limited their smoking and the desire to smoke. It was pharmacologically more like a Nicorette inhaler than like some tobacco.
In some other study, 50 smokers wanted to diminish the health risks linked to smoking without stopping to smoke completely. The study showed that the use of cigarettes was largely reduced without any withdrawal symptoms. The nicotine concentrations in their system were at a similar level, and their desire was still very much present.
There was another study where e-cigarettes helped three participants. These participants all had a documented history of previous failed attempts to stop smoking using some professional methods to assist them. These people were able to cease smoking and stay abstinent for six months while the study lasted.
Finally, there was an online survey with 3,587 participants who were interested in this subject. The survey was dedicated to the smoking cessation and use of the e-cigarettes. On average levels, participants used e-cigarettes for about three months and during that time, they applied five cartridges and drew 120 puffs a day. 92% of these people stated that e-cigarettes helped them smoke less, while 96% got the help they needed to stop smoking completely.