Vaping refers to the act of inhaling and exhaling aerosol, often called vapor, produced by an electronic cigarette or similar device. These devices heat a liquid that usually contains nicotine, flavorings, and Scripps Health E cigarettes remain the most commonly used tobacco product among middle and high school students in the United States, according to the Instagram Vaping is NOT harmless the dangers are REAL! From nicotine addiction and EVALI to popcorn lung, heart risks, and cancer threats via formaldehyde & heavy metals your lungs deserve better. Protect Smoking and Vaping with Asthma: Causes, Triggers and More Global Allergy & Airways Patient Platform Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department