Mouth to lung vaping (MTL) refers to inhaling vapour into your mouth and letting it linger there for a while before inhaling it into your lungs. To vape mouth to lung, take a draw on your vape device, hold it in your mouth then inhale it into your lungs before exhaling it.
MTL is the best vaping method for most new users because of its similarity to smoking cigarettes. Some longtime users also prefer this method because the technical limitations of early e-cigarettes only allowed them to vape MTL and they got accustomed to it.
Benefits: Lower power, longer coil and battery life, higher nicotine and less liquid usage.