Vaping may not contain tobacco, but that doesn't mean it's harmless. E cigarettes still expose your lungs to nicotine and a mix of chemicals that have been linked to lung disease, heart issues, E cigarettes raise risks of lung disease Study Punch Newspapers What Vaping Really Does to Your Lungs University of Utah Health La cigarette lectronique est utile et n'est pas dangereuse Atoute.org Vaping may damage immune system and lead to lung disease, study suggests