Can Vaping Cause Lung Cancer? Here's What We Know. What Does Vaping Do to Your Lungs? Johns Hopkins Medicine Pulmonary toxicity of e cigarettes Photos Show Vaping Lung Damage Like Blisters and Lung Collapse Business Insider 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. As e cigarette use grows, more research needed on long term effects of vaping American Heart Association