How Lawsuits and Regulations Are Chipping Away at Juul Study finds cannabis vaping more harmful than nicotine vaping Juul halts sales of top selling e cigarette flavor PBS News Vaping Illnesses Are Linked to Vitamin E Acetate, C.D.C. Says The New York Times Students at two high schools in possession of vaping devices containing THC: On September 16, a school administrator at Thomas Stone High School observed a transaction involving vaping devices inside the school.