Can E cigarettes help COPD patients quit smoking and reduce harm to lungs? Frontiers Chronic obstructive pulmonary disease (COPD) and COPD like phenotypes Vaping and COPD: Is it okay or can it cause more problems? Smoking slowly damages your lungs, often without clear symptoms at first. Every cigarette releases thousands of toxic chemicals that enter your airways and lungs. Over time, this damage becomes serious and sometimes