Vaping weed is popular, but there are many unknowns about its safety : NPR Student in Possession of Three Vaping Devices Containing THC: On November 24, a school administrator at Henry E. Lackey High School became aware of a student in possession of a vaping device. Concern is growing about synthetic cannabinoids found in THC vapes stronger, riskier, and unpredictable. These substances sometimes called fake weed have been linked to seizures, paranoia and even Vape Weeds Cannabis Vape Carts THC and CBD Vape Pens Vape Weeds Is It Illegal in Pennsylvania to Use Vape Pens, Wax, or Oil Containing THC?