A decade ago, the most frequent opinion among smokers was that vaping was less harmful than tobacco. But ten years on, the opposite is true: over a third say that vapes are Vaping Produces Far Less Second Hand Nicotine Than Smoking Respiratory Therapy Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA) New study comes the closest yet to proving that e cigarettes aren't as dangerous as smoking