Chronic E Cigarette Use Impairs Endothelial Function on the Physiological and Cellular Levels Arteriosclerosis, Thrombosis, and Vascular Biology The Dangers of Passive Smoking in Public Places Is electronic cigarette vapour harmful to those around you? X Bar Why passive vaping can be a health scare for the smoker and those around him, ETHealthworld Secondhand Electronic Cigarette Aerosol and Indoor Air Quality US EPA Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center