The Geekvape Ammit MTL RDA features a compact and easy to use rebuildable dripping atomizer. It features a perfect build deck designed for the flavor purist and is a single coil mouth to lung RDA has a great performance. The different design that utilizes a top adjustable airflow valve with an advanced airflow circulation system which helps recycles the airflow throughout the tank. The five air orifice helps you adjust the rate of airflow. Geekvape Ammit RDA features a large 22mm diameter simple design but yet works great.