How Your Body Absorbs Nicotine: Vapes vs Cigarettes FREESMO UK Vaping delivers heated chemicals directly into the lungs. Unlike air, vape aerosols contain fine particles, nicotine, heavy metals, and flavoring compounds that were never designed to be inhaled. Once inside the chest, Do You Inhale Vape Or Keep It In Your Mouth Blog :: What is the difference 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