My Neighbors Smoke Weed All Day, and It's Stinking Up the Joint The New York Times Electronic cigarette Wikipedia Second hand cannabis smoke: Researchers investigate involuntary THC exposure in homes University of Toronto Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Early research says secondhand smoke from vaping may not be as bad as cigarettes, but it's still not harmless. https: fox59.com news national world does vaping cause secondhand smoke doctors explain the side effects Smoking vs. Vaping Weed: Know the Facts Hackensack Meridian Health