Swedish court says that the e-cigarettes do not contain instructions on how they could be used to reduce the consumption of cigarettes or nicotine addiction.
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‘Health experts and watchdogs have been embroiled in debate as to whether the e-cigarettes, often not strictly regulated, are safe or not.’
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E-cigarettes are battery-powered devices that heat up a liquid containing nicotine and artificial flavouring. The vapour is inhaled -- "vaped" -- and exhaled, much like a cigarette. In the last few years, health experts and watchdogs have been embroiled in debate as to whether the gadgets, often not strictly regulated, are safe. 
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They can also be used with nicotine-free liquids, but some fear e-cigarettes could be a gateway to "real" cigarettes for teenagers. Regulations concerning e-cigarette are changing rapidly and vary widely throughout Europe.
Portugal does not restrict the use of e-cigarettes, but heavily taxes them. In Switzerland, the e-cigarette is banned if it contains nicotine. France has the largest market in Europe, with nearly three million "vapoteurs".
Source-AFP