Research Shows E Cigarette Vapor Exposure Amplifies Harmful Inflammatory Response in Influenza A The safest vape is the one you never start. Flavoured vapes were designed to feel harmless: Candy taste. Fruit smell. Cool packaging. Viral aesthetics. But your lungs don't care about the flavour. Vaping associated esophagitis BMC Gastroenterology Springer Nature Link Cardiopulmonary Impact of Electronic Cigarettes and Vaping Products: A Scientific Statement From the American Heart Association Circulation