Juul vape: What is it, why are teens addicted, and is it safe? CNET Student in possession of a vaping device that tested positive for THC: On February 19, a school resource officer at Westlake High School observed a student vaping inside the school. The vape Study finds cannabis vaping more harmful than nicotine vaping FDA bans e cigarette Juul; impact on marijuana vape market to be determined FDA Suspends JUUL Vape Ban Respiratory Therapy What is JUUL?