Inside Greentanks Playbook for Consumer First Vape Hardware Cannabis oils used in vaping devices can have high levels of THC. Many young people in Ontario say they use cannabis. In 2023, about 1 in 6 students in grades 712 said Student falls ill after using vape device with THC; Prior incidents of possession of THC vapes and cannabis reported: On April 22, a student at Thomas Stone High School, age 16, became Vaping: What you need to know NIH MedlinePlus Magazine