A Rebuildable Dripping Atomizer (RDA) is a rebuildable deck covered with a cap and drip tip that are purpose built for flavour, vapour, or a combination of both. 

RDAs have no tank for e-liquid, and must be dripped on after every few uses; however, with no surrounding tank almost the entire width of the device can be devoted to build space.

With top brands such as Twisted Messes, Recoil RDA, Hellvape, Vandy Vape, and Geek Vape, the choices are endless.