Smoking vs vaping what both do to your heart, lungs and body Differential Acellular Reactive Oxygen Species (ROS) Generation by E cigarettes Containing Tobacco Free Nicotine (TFN) and Tobacco Derived Nicotine[v1] Preprints.org Differential Toxicity of Electronic Cigarette Aerosols Generated from Different Generations of Devices In Vitro and In Vivo Environment & Health A 27 year old man with e cigarette use presented with a 5 day history of fever, vomiting, diarrhea, dyspnea, and hemoptysis. A radiograph and CT scan of the chest showed patchy consolidations in both lungs.