If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs. 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: The Smoke Free Habit That Isnt Risk Free, PALS Community Magazine, So vapes. They smell like bubblegum, look like highlighters, and somehow cost more than a weeks groceries. But whats What is MTL Vaping? What Does Mouth to Lung Inhaling Mean? Mouth To Lung and Direct To Lung Vaping