How to talk to youth about vaping: Information and resources from the district and partners We know that 4 20 is going to be an important day for many people across the world, so we're highlighting #HarmReduction info for THC vapes and our new THC Vapes booklet. You Vaping Leaflet Breathe Vaping Information Substance Use Prevention Services Youth Services System, Inc. Youth Services System, Inc. Vaping Devices (Electronic Cigarettes) DrugFacts National Institute on Drug Abuse (NIDA)