Do bans ever work? More and more teenagers in the UK say that they vape. It is already against the law to sell e-cigarettes to under-18s. But some say even tougher rules are needed.
Illegal vapes contain toxic levels of lead
Crackdown: The number of children in Britain trying out vaping has risen by 50% in one year. Glossary
Lead - A grey metal that can be poisonous to humans.
Nickel - A silvery-white metal.
Chromium - A hard-white metal found in stainless steel.
Vapes - E-cigarettes.
Kidderminster - A town in Worcestershire, England, with a population of nearly 60,000.
Vaping - Using an electronic cigarette to breathe in nicotine or other drugs as a vapour.
Illegal - Against the law.
Disposable - Intended to be thrown away after it is used.
Public - Ordinary people in the community or a place where everyone is allowed to go.
Alcohol - A liquid made by fermenting sugars. It can cause drunkenness.
Experts - Someone who knows a lot about a particular subject.