E cigarettes may be less harmful than regular cigarettes, but they aren't harmless. Here are a few of the risks of inhaling the aerosol or vapor a.k.a. vaping produced by e cigarettes: E liquide 6mg de nicotine Nicovip The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab