A new study published in Nicotine & Tobacco Research found that those using e cigarettes alone were more than twice as likely to develop COPD than people who didn't use any tobacco products, Vaping is not harmless. A new study from Johns Hopkins Medicine reveals that e cigarettes significantly increase the risk of COPD and high blood pressure. Our own Dr. Todd Hoopman shares firsthand accounts Inhalation Toxicology of Vaping Products and Implications for Pulmonary Health Health effects in COPD smokers who switch to electronic cigarettes: a COPD Dove Medical Press