While vaping is not risk free, it is less harmful than tobacco Our World in Data Increased oxidative stress responses in murine macrophages exposed at the air liquid interface to third and fourth generation electronic nicotine delivery system (ENDS) aerosols ScienceDirect Carbonyl Profiles of Electronic Nicotine Delivery System (ENDS) Aerosols Reflect Both the Chemical Composition and the Numbers of E Liquid IngredientsFocus on the In Vitro Toxicity of Strawberry and Vanilla Flavors Vaping Side Effects: What Every Vaper Needs to Know E Cigarette Direct Is Vaping Bad For You? Side Effects, Risks, Nicotine, Marijuana Health effects of electronic cigarettes Wikipedia