Is Vaping Better Than Smoking? American Heart Association How to Properly Store E Liquids and Prevent Accidental Exposure of E Liquids to Children FDA Signs Vaping May Be Causing You Long Term Damage HMH NJ 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 Vape Inhalation: To Puff or Not to Puff? Find Out! Vaping isn't just vapor. It's an aerosol filled with nicotine and chemicals that go deep into your lungs and straight into your bloodstream. Many vapes contain: Highly addictive nicotine