U.S. regulators are stepping up enforcement against unauthorized products, especially imports from China. Only about 41 vape products are currently authorized for legal sale in the U.S. FDA's Searchable Tobacco Products Database Disposable Vapes: Dangerous, Damaging, and just Dumb US Assembled Fifty Bar Survives Texas Vape Ban China e cigarette titan behind 'Elf Bar' floods the US with illegal vapes Reuters FDA calls for removal of Puff Bars, a type of fruity, disposable vape