[TigersEye]

...but there’s no consensus on whether vaping devices can help anti-smoking efforts.

If you've switched from cigarettes to vaping you've already quit smoking. There is something like 59 noxious gases and chemicals in cigarette smoke, including carbon monoxide, plus tar, and there is only nicotine in vaping. Quite possibly the least noxious chemical of the 59.

Of course our all-wise government, at every level, who has demonized tobacco and put excessive taxes on it, is working on banning or heavily taxing vaping. Tobacco is evil but it's the government's evil and competition will not be allowed.

[Drango]

If you've switched from cigarettes to vaping you've already quit smoking.

I guess, but almost all are still addicts. After all it's the nicotine that most seek.

[aMorePerfectUnion]

http://www.nbcnews.com/health/cancer/you-vape-high-levels-formaldehyde-hidden-e-cigs-n290826

Formaldehyde, a carcinogen, is present apparently...

[redgolum]

Not to mention the tobacco growers, and other companies, who are heavily invested in traditional cigs.

Vaping is cutting down on smoking. I know many who used it to wean themselves off cigarettes.