Tripling of e cigarette devices in U.S. market driven by influx of unauthorized disposables from China FDA warns stores to stop selling Elf Bar, the 'youth appealing' top disposable e cigarette in US Thousands of unauthorized vapes are pouring into the US despite the FDA crackdown on fruity flavors Illicit Vapes and E Cigarettes Flood Stores as F.D.A. Struggles to Combat Imports The New York Times