Hidden Dangers of E Cigarettes: What's Really Inside These Devices? E cigarette liquid can be deadly, especially to children What's Up at Upstate SUNY Upstate Did you know that that the vapor produced from vapes and e cigarettes is actually aerosol not water mist. Vape aerosol contains harmful substances that are not healthy and safe for our lungs, such Les cigarettes lectroniques rduisent elles les risques respiratoires et cardiovasculaires chez les fumeurs ? Roswell Park Comprehensive Cancer Center Buffalo, NY Cancer : l'utilisation de la cigarette lectronique accrot le risque Lung cancer risks persist with e cigarette use after quitting tobacco smoking