Vaping: How E cigs Work (Infographic) Live Science 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 The Health Effects of Vaping Indoors Indoor Doctor Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Eliminating Tobacco Use in Washington Kids American Heart Association