MTL, short for Mouth-to-Lung, is a vaping style and device category. MTL vaping involves drawing the vapor into the mouth first and then inhaling it into the lungs. This style closely resembles the experience of smoking a traditional cigarette, making it popular among transitioning smokers. MTL devices typically have tighter airflow, higher resistance coils, and are suitable for use with higher nicotine e-liquids. They provide a more restricted and flavorful vape, with a satisfying throat hit.