What Is Smoker Lung? Difference Between Healthy Lungs Vaping and smoking together increases lung cancer risk fourfold Does vaping cause lung cancer? UT MD Anderson Vaping vs smoking health effects comparison Vaping Lungs vs Healthy Lungs: What You Need to Know 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.