Marijuana and Your Lungs: Is Vaping Safe for People with COPD? Are E Cigarettes a Safe Alternative to Smoking? Using Airway Cell Cultures to Assess Early Indicators of COPD Progression Inquiries Journal Are E Cigarettes a Safe Alternative to Smoking? Using Airway Cell Cultures to Assess Early Indicators of COPD Progression Inquiries Journal 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, The electronic cigarette epidemic Chronic Disease