How to Tell if Your Child is Vaping THC" Wall Graphic PTR Press Does vaporizing weed smell more than smoking it? Do you know the signs your teen may be vaping cannabis? Cannabis vape pens are small, discreet, and easy to hide and many parents don't even know what to look for. Cannabis Class: How Many Hits Do I Take Off a 70% THC Vape Pen The Stone Do Vapes Smell And What Can You Do About It? RQS Blog Does Vaping Weed Smell? (More Terpenes = Stronger Smell)