Hookah vs Vape vs Cigarette: Which is more harmful? Do Flavoring Agents make them more addictive? Vaping Produces Far Less Second Hand Nicotine Than Smoking Respiratory Therapy UofL study shows nicotine in e cigarettes may not be harmless, as some claim UofL News 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 Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA) Is vaping more harmful than smoking cigarettes? More people incorrectly think so: Newsroom UT Southwestern, Dallas, Texas