T-Air Subtank is the vape tank atomizer designed with a range of practical and functional features. The top dual-slotted honeycomb airflow control will shorten the airflow and reduce air loss for increased vapor and enhanced to provide you top notch. T-Air Subtank is completely leak-proof with the design of five rubber rings. As for the filling system, the quarter-turn top cap and dual filling ports make the filling more convenient. Smok T-Air Subtank can hold 5ml (standard) or 2ml (TPD) capacity, is compatible with TA 0.2ohm and 0.15ohm coils.