Is Mouth to Lung Vaping Better Than Direct to Lung? Your lungs were never designed to inhale chemicals disguised as harmless vapor. Every puff may look smooth on the outside, but inside, it can trigger inflammation, damage delicate airways, and potentially Vaping & Lung Health: Comparing with Smoking Vape vs Cigarettes which one is actually safer? Many people think vaping is harmless and cigarettes are the only real danger. But the truth is both can slowly damage your lungs