Thirdhand Vapor from E cigarettes Damages the Lungs of Mice Thirdhand Smoke Resource Center E Cigarettes and Breast Cancer: Is Vaping Really Safer? E Cigarette Smoke Causes Lung Cancer in Mice NYU Langone News Vaping and the use of e cigarettes are likely to cause cancer, according to a new study published by the University of New South Wales on 30 March. The study, which brought together E cigarette vapour contains two cancer causing chemicals, study says