5 Vaping Facts You Need to Know Johns Hopkins Medicine Is Vape Smoke Harmful? What's The Difference Between Smoke & Vapor? Vaping vs Smoking: Effects and Tips for Protecting Your Lungs Max Hospital Many young people who vape did not smoke cigarettes before they started vaping. But young people who vape are more likely to start smoking cigarettes than those who never vape. For help What's The Difference Between Smoking And Vaping?