Nearly 2 million U.S. adult nonsmokers vape E Cigarettes Vaping with Juul & Other Electronic Cigarettes Vape Parts Explained: How Does a Vape Work? Teens say they don't vape, they 'Juul.' That makes the activity hard to track Los Angeles Times Vaping Device Electronic Cigarette Vape Isolated Stock Photo 1296079219 Shutterstock Hands off my e cigarette! New vaporizer comes with biometric lock