The Dangers of Juuling National Center for Health Research Teen vaping 'epidemic': FDA to limit sale of sweet e cigarette flavors St. This vaping device, called a JUUL, might look like a USB drive, but it contains nicotine and other harmful chemicals. Alarmingly, this easily hidden device and its enticing vapor flavors, like JUUL The Smoking Alternative, unlike any E Cigarette or Vape Slate JUUL Device Free Shipping JUUL