Researchers Warn of Potential Harm From E Cigarette Secondhand Vapor AZPM Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Can You Get Secondhand Smoke From a Vape or E Cigarette? Evidence Mounts About the Health Impact of Second Hand Vaping Bisnar Chase Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Secondhand Smoke and Electronic Cigarette Aerosols US EPA