The "Hero" by iJoy is based on the Tornado RDTA and the Tornado Nano Clearomizer. A novel air flow guide, which is focused directly on the windings, provides a super intense taste. For this purpose, a liquid control is used so that the tank can be controlled individually and can not leak during filling. You have the choice. Decide between the winding deck and finished evaporator heads. The tank is constructed so that both are possible. Just change the deck and off you go.