E Cigarette Products Are Blamed For Respiratory Illnesses In Arkansas 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 and Asthma: Is It Safe? Lignosus Smokers who switch to vaping see improved respiratory health Medical Update Online The evidence is clear: Young E cigarette users suffer from respiratory symptoms American Lung Association Use of e cigarettes plus tobacco cigarettes linked to higher risk of respiratory symptoms