Understanding the Dangers of Vaping: EVALI and Lung Injury How Many Cigarettes Are Equal To A Vuse Pod Vuse Golden Tobacco Pods Vuse Alto, E VUSE Pods Explained Price, Puffs & Lifespan Guide How long does nicotine stay in your system? Smoking vs. vaping 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, Is vaping safer than smoking? A pulmonologist weighs in.