But now,
Los Angeles City Council has voted to ban the use of electronic cigarettes in the city's restaurants, bars, nightclubs and public spaces.
The council voted unanimously to ban the battery-powered devices, which are filled with nicotine liquid.
If the bill is signed into law, Los Angeles would follow New York and Chicago in imposing similar rules.
http://www.bbc.com/news/technology-26452778#FBM346174