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 Marijuana Causes More Lung Damage Than Vaping or Smoking Nicotine E cigs: What You Need to Know if You Care for Patients with COPD Challenges in COPD Question: How do the ingredients in e cigarettes and vaporizers affect respiratory health? Los Angeles ENT Doctors ENT Specialists Top Surgeons Vaping Related Illness and Lung Disease NEJM