Is Vaping Marijuana Safe? Risks, Side Effects & Detox Help Marijuana and Vaping: Shadowy Past, Dangerous Present The New York Times Weed Vaporizers: A Discreet and Odorless Alternative to Smoking Nectar Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Vaping cannabis associated with cough, bronchitis and wheezing, study finds CNN 5 Methods Teens Use to Mask the Smell of Marijuana