How to Detect if Someone is Vaping in Your Home: Key Signs to Watch 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. Vape vs Joint Smell: Discretion, Duration, and Detection Do Vapes Smell And What Can You Do About It? RQS Blog I can do it at home, the smell won't linger': Do youths who vape know what they're inhaling? CNA