What Does Vaping Do to Your Lungs? Johns Hopkins Medicine What is MTL Vaping? What Does Mouth to Lung Inhaling Mean? How to Inhale a Vape (Without Coughing!) Ashtray Blog E Cigarette Direct Vape Inhalation: To Puff or Not to Puff? Find Out! How to Inhale a Vape: MTL vs DTL Beginner Guide Smoking and vaping are often compared, but neither is harmless. While they work differently, both can expose the lungs to addictive nicotine and harmful chemicals that impact breathing and overall health. Smoking