Sub ohm tanks are atomizers designed for big clouds. These atomizers require powerful mods, capable of putting out high wattages. Subtanks provide a ton of airflow, and were originally designed to mimic the experience of dripping, with the convenience of a tank. Now anyone can be a cloud chaser thanks to sub ohm tanks.

Made for direct lung vaping, sub ohm tanks utilize pre-built coil heads that are usually 0.5 ohms or lower. Most of these coil heads use cotton wicking. Recently manufacturers have been using other wicking materials like wood pulp and more advanced coils like dual- or triple-mesh. These innovations have had a big impact on flavor production.