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, Signs Vaping May Be Causing You Long Term Damage HMH NJ Can lung damage from vaping heal? Allen Carr's Easyway Another Gross Reason to Put Down the E Cigarettes American Lung Association Is vaping safer than smoking? A pulmonologist weighs in.