How People who Smoke or Vape Cannabis Transport the Chemical Residue into Clean Spaces Thirdhand Smoke Resource Center Vaping poses lower secondhand risk than smoking for teens, new peer reviewed study finds Clearing the Air A viral simulation comparing the effects of smoking and vaping has reignited debate over the long term health risks of both habits. The demonstration visually shows how cigarette smoke leaves thick tar buildup Vaping a form of tobacco free smoking is, for some, a breath of sweet air