"Less harmful" is not "harmless"
Some health authorities have stated that, for an adult who already smokes, switching completely to vaping is likely to expose them to fewer of the toxic chemicals found in burning tobacco. That is a comparison between two harmful activities — not an endorsement of vaping as a healthy choice.
The critical distinction is this: less harmful than smoking and safe are completely different claims. A parachute with a hole is safer than no parachute, but you would not describe it as safe. Vaping still delivers nicotine and a range of other chemicals, and it carries its own risks.
The honest summary
- For a current smoker, switching entirely to vaping may reduce exposure to some tobacco toxins.
- For a non-smoker — especially a young person — vaping introduces new health risks and nicotine addiction that were not there before.
- Vaping is not risk-free, and it is not a proven, first-line way to quit for everyone.
Where the "safer" claim comes from
Cigarette smoke is produced by combustion — burning tobacco at high temperature — which creates thousands of chemicals, including many known carcinogens and carbon monoxide. E-cigarettes do not burn tobacco, so they do not produce that exact mixture. That is the basis for the harm-reduction argument aimed at existing adult smokers.
But "different chemicals" does not mean "no harmful chemicals." As covered in what is in vape aerosol, e-cigarette aerosol contains its own set of concerning substances, and the long-term effects are still being studied.
If you have never smoked, taking up vaping does not reduce any harm — it creates new harm. The comparison to smoking is only relevant for people already addicted to cigarettes.
The trap for non-smokers and young people
The "safer than smoking" message was intended for adult smokers looking to quit. Unfortunately, it has been widely absorbed by people who never smoked at all — including teenagers — as reassurance that vaping is fine. For this group, the honest framing is not "vaping vs smoking" but "vaping vs not vaping." And not vaping is always the healthier option.
The relevant question for most people is not "is vaping safer than smoking?" but "is vaping safer than not vaping?" — and the answer to that is clearly no.
What about quitting smoking?
If you currently smoke and want to stop, the best path is one guided by a healthcare professional. There are approved, evidence-based treatments and support services designed specifically to help people quit. A doctor or pharmacist can help you weigh your options and choose the approach most likely to work for you — without simply swapping one nicotine addiction for another indefinitely.
Speak to your doctor about quitting smoking, and see our support resources. If you vape and want to stop, read How to quit vaping.
Sources & further reading
- World Health Organization (WHO) — position on e-cigarettes and harm.
- U.S. Centers for Disease Control and Prevention (CDC) — e-cigarettes and smoking comparison.
- Australian Government Department of Health and Aged Care — vaping and smoking cessation guidance.
- National guidance on evidence-based smoking-cessation treatments.