Sales of smart vapes e cigarettes with digital displays are rising in the United States. These devices are attractive to youth as they typically include flavored nicotine and may include features 2FIRSTS Vapesourcing, a leading U.S. vape retailer, has announced it will no longer supply flavored nicotine products to California and Massachusetts. Online vape retailers ignore rules protecting minors, study finds Los Angeles Times Vape Bans: E Cigarette Restrictions in the U.S. and Worldwide Vaping360