Marijuana and Your Lungs: Is Vaping Safe for People with COPD? National Emphysema Foundation E cigarettes are Poor Substitutes for Conventional Smoking in COPD Patients Vaping Dehydration and How to Avoid It Red Vape Vaping doubles risk of serious lung disease, even without smoking history study Professor Erwin Loh Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking