Each type of RTA can provide a completely unique experience. Here are the main features to look at when choosing the perfect one for you.

Bottom airflow vs top airflow

Most RTAs will implement a bottom airflow system. Due to potential leaking, companies have also been designing top-airflow systems that channel the air to the side or bottom of the coils through different mechanisms. While these designs are more leak resistant, they sometimes end up sacrificing flavor, although newer top-airflow atomizers have been performing much better in the flavor department.

MTL vs DL

The draw of the atomizer is also an important categorization for RTAs. Atomizers that come with a small number of narrow airflow holes will produce a mouth-to-lung draw, while larger airflow slots or multiple holes will allow more vapor production and are geared towards direct-lung inhales.

Single coil vs dual coil

The vast majority of RTAs come with either single or dual-coil build decks. The number of coils is usually proportionate to the amount of vapor produced. Most single-coil RTAs range between an MTL to a restricted-DL draw, while dual-coils and above allow for much more airflow and vapor production.

RTA vs GTA-style

The build deck is placed on the base of the atomizer in standard RTAs, while Genesis (GTA) style atomizers come with raised decks that are positioned higher in the tank section. Deck placement will dictate the ways the RTA needs to be wicked, with GTA-style RTAs usually requiring longer wicks than standard RTAs.