Vaping ups risk of self reported COPD Futurity COPD and Vaping: Understanding the Risks and Long Term Effects National Emphysema Foundation E cigarettes are Poor Substitutes for Conventional Smoking in COPD Patients Vaping doubles risk of serious lung disease, even without smoking history study Professor Erwin Loh PDF) An RCT of acute health effects in COPD patients after passive vape exposure from e cigarettes Vaping Predicted to Have Notable Impact on Europe's COPD Burden Respiratory Therapy