Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. Validating the Safety Profile of Modern Vaping Arkadia Vaping and E Cigarettes ADAPP Safety Sign: No Smoking Or Vaping Including Use Of E Cigarettes & Vape Pens It's The Law () E Cigarettes (Vapes) Smoking and Tobacco Use CDC Health harms of vaping iCanQuit