DTL - Direct to Lung, vapour goes directly into your lungs, levitating the capacity and brings the ultimate satisfaction to you experienced vapors. DTL also brings you more flavours as you inhale more air. Take it as a breathing exercise - suck the vapour straight into your lungs without allowing it to rest in your mouth. You will notice your lungs are full immediately as the vapour enters your body. When you exhale, you can create the dense smokey clouds that make heads turn. Alternatively, if you are someone who's looking into doing sick tricks, DTL devices should be in your shop cart like, right now.