Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs. Chemicals The Health Effects of Vaping Indoors Indoor Doctor Is vaping more dangerous than smoking? UK Addiction Treatment Centres It's Not Just Cigarettes: Vape Residue Sticks on Surfaces Too Thirdhand Smoke Resource Center Is Vape Smoke Harmful? What's The Difference Between Smoke & Vapor?