Smoking and Vaping National Institute of Environmental Health Sciences Vaping Lungs vs Healthy Lungs: What You Need to Know We were shocked': Vaping considerably increases lung cancer risk among people who smoke Smoke Vape Causes Lung Disease E cigarette Stock Vector (Royalty Free) 1580147245 Shutterstock What Is Smoker Lung? Difference Between Healthy Lungs 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.