U.S. Sales Of E-cigarettes Projected To Be $1.5 Billion In 2014 [Getty Images]

Ilona Orshansky, owner of Brooklyn Vaper, uses a vaporizer, also known as an e-cigarette, in her shop in the Brooklyn borough of New York, U.S., on Saturday, Feb. 8, 2014. Bloomberg Industries projects total U.S. e-cigarette sales could reach $1.5 billion this year. Photographer: Timothy Fadek/Bloomberg via Getty Images

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