Inhale this: What does vaping do to your lungs? 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, If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. How to Do a French Inhale (Irish Waterfall): 3 Simple Steps