RDA:Rebuildable Drip Atomizers, often referred to as RDAs or Drippers, are vaping atomizers in which the user must build their own heating element. RDAs store as much E-Liquid as the wicks can hold, and the user must drip their vape juice onto the wicks to keep them saturated. Drippers offer the smallest profile for vaping atomizers and are capable of producing large clouds and intense flavor.