RDA’s known as drippers, is a more popular system among cloud chasers. If you intend to blow huge clouds, you should build an RDA. In these vaping atomizers, the users have to build their own heating element. RDA stores e-liquid like wicks and the vaper should drip the e-juice onto the wicks, for keeping them saturated. In RDA, you drip the liquid in the tank from the bottle through its drip tip. Once you drip the juice inside, you vape it off. With RDA’s, you can even change up your liquids frequently but you need to carry the bottles around. RDA’s give the smallest profiles for vaping atomizers but are able to produce large clouds with intense flavor.