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. If someone smokes outside, do they bring thirdhand smoke indoors with them? Thirdhand Smoke Resource Center Sitting somewhere when a cloud of cotton candy vapor washes over you? If you can smell the sweet scent of a vape, that's not a great sign. https: fox4kc.com news national does vaping cause secondhand smoke doctors explain the side effects Marijuana and Vaping: Shadowy Past, Dangerous Present The New York Times Electronic cigarette Wikipedia What Are the Signs of Vaping? How to Spot the Hidden Clues