Frequently Asked Questions

These are the questions people most often ask about vaping, answered as plainly and honestly as the evidence allows. Answers here are general information, not medical or legal advice, and rules and evidence change — follow the linked sources for the current detail.

Independent educational resource. Vapor Hub is an information-only reference. Nothing here is for sale, and nothing here encourages anyone to start using nicotine. Intended for adults of legal age (18+ in the UK and EU, 21+ in the United States). This is not medical advice — speak with a qualified professional about your own health. If you do not smoke or vape, the best choice is not to start.

Is vaping safe?

No product that delivers nicotine is “safe,” and vaping is not harmless. The more accurate question is “compared with what?” Compared with smoking cigarettes, regulated vaping is widely assessed as substantially less harmful, because there is no combustion and therefore far less tar and fewer combustion toxicants. Compared with using nothing at all, vaping carries risks and offers no benefit. So: much less harmful than smoking, not safe in absolute terms. The health and harm-reduction page explains the nuance.

Is vaping better than smoking?

For someone who already smokes and switches completely, the consensus of bodies such as the UK’s NHS is that vaping is likely far less harmful than continuing to smoke. “Better” only holds in that specific comparison and only with a complete switch — continuing to do both (“dual use”) does not deliver the same benefit. For a non-smoker, vaping is not “better” than anything; it simply adds risk that was not there before.

Can vaping help me quit smoking?

The evidence here is genuinely encouraging. A Cochrane review found high-certainty evidence that nicotine e-cigarettes help more people stop smoking than traditional nicotine replacement therapy. That said, they work best as part of a plan — ideally alongside a free stop-smoking service — and the ultimate aim is to stop nicotine altogether. Our quitting resources page lists free, proven help.

What is actually in the vapour?

It is an aerosol, not water vapour. It contains the base liquids propylene glycol and vegetable glycerine, flavourings, nicotine if the liquid contains it, and trace amounts of other compounds. It generally contains far fewer and lower-level toxicants than cigarette smoke, but it is not “just water.” The e-liquid page breaks the ingredients down.

Wasn’t there an outbreak of vaping lung illness?

Yes — the 2019 EVALI outbreak in the United States. Investigation by the CDC linked it primarily to vitamin E acetate used in illicit, informally-sourced THC vaping products, not to regulated nicotine e-liquids. It is a serious warning about black-market products specifically. Details are on the health and safety page.

Are vape batteries dangerous?

The lithium-ion battery is the one part of a vape that can fail dangerously, usually through a short circuit — for example a loose bare cell touching keys in a pocket — or through a damaged battery wrap. Regulated devices include safety cut-offs that greatly reduce the risk; unregulated “mechanical” devices do not. The battery safety page explains how to think about this.

Is vaping legal, and how strong can it be?

It is legal for adults in most developed countries, but the rules differ sharply. In the EU and UK the Tobacco Products Directive caps nicotine at 20 mg/ml and refill bottles at 10 ml, and bans certain ingredients. The US instead requires each product to be authorised by the FDA and has no federal strength cap. Flavour and disposable-device rules are changing quickly everywhere. See the regulation page.

How old do you have to be?

You must be an adult of legal age: 18 in the United Kingdom and most of the European Union, and 21 in the United States under the federal Tobacco 21 rule. Preventing youth use is a near-universal public-health priority, and this resource is intended only for adults above the applicable age.

Does vaping produce harmful secondhand exposure?

Exhaled aerosol is not the same as secondhand cigarette smoke and current evidence suggests substantially lower risk to bystanders — but not zero. Many venues and households sensibly avoid vaping around children, pregnant people and those with respiratory conditions.

Why does this site exist if it sells nothing?

Because neutral, non-commercial explanation is hard to find in a space dominated by marketing. Vapor Hub is an independent information resource — no shop, no products, no affiliate links. You can read more about that on the about page. And the message we return to on every page: if you do not smoke or vape, the healthiest choice is not to start.