The aerosol (vapour) created by vaping is not completely harmless. That’s why people who don’t smoke should not vape. However, for those who smoke, switching to vaping is less harmful than smoking.

[There is] general agreement that electronic cigarette use exposes the user to fewer toxicants and at lower levels than smoking cigarettes.

Electronic cigarettes for smoking cessation 2025 | Cochrane Library

In general, people who smoke who switch to vaping can reduce their exposure to a wide range of toxic substances. For more information, check out:

There are safety risks to any electronic device.

Learn about vaping safety

Risks are what might happen, but side effects are the direct results.

Read the side effects of vaping

The risks associated with long-term vaping are unknown. While vaping is less harmful than smoking it is unlikely to be totally harm free. People who are vaping to quit smoking should look to eventually stop vaping too.

None of the included studies (short to midterm, up to two years) detected serious adverse events considered possibly related to electronic cigarette (EC) use. However, more long‐term data are needed, and this conclusion relates specifically to people using EC to quit smoking and not to people who have never smoked.

Electronic cigarettes for smoking cessation 2025 | Cochrane Library

Scientists will not be certain for many years of any long-term health risks associated with vaping.

The Ministry of Health has a role in continuing to monitor the risk. If you become aware of any adverse reactions to vaping please report to the New Zealand Pharmacovigilance Centre.

Comparative risks of cardiovascular disease and lung disease have not been quantified but are likely to be also substantially below the risks of smoking.

Electronic Cigarettes for Smoking Cessation, Cochrane Review April 2021

Be aware that some people may not like being around others who are vaping. Some people may find the vapour unpleasant, or are sensitive to it.

Be considerate about where you are vaping, especially in public spaces that are smokefree. Avoid vaping when there are children and young people nearby. Respect other people when they request that you do not vape.

How does vaping affect others? Learn the impacts

Vaping is not permitted in all Smokefree indoor workplaces, including restaurants and bars. Business owners can make their own decisions about vaping in the outdoor areas of their workplace.

The most important thing we can do is to be inclusive and aware of people's needs. If someone at work is vaping to quit, find ways to support them while still being considerate to other people who may be sensitive to vapour.