Vaping and Asthma: Is It Safe? Lignosus Smokers Switching to Vaping See Improved Respiratory Health Respiratory Therapy The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association Most common e cig refills contain respiratory irritants, and people who smoke and use e cigs are more likely to experience respiratory symptoms ERS European Respiratory Society Vaping in the UK: A Comprehensive Analysis of its Impact on Respiratory Health Woodley BioReg