Sub Ohm (Direct To Lung) Tanks

What is a Sub-Ohm (Direct-to-Lung) Tank, and How Does it Work?

A sub-ohm tank uses coils with a resistance below 1 ohm, allowing it to handle higher wattages and produce larger vapour clouds. Designed for direct-to-lung (DTL) inhaling, sub-ohm tanks create a more open airflow, which enables vapers to inhale vapour directly into the lungs, offering a smoother hit with high VG e-liquids.

What Type of E-Liquid Should I Use with a Sub-Ohm Tank?

Sub-ohm tanks work best with high-VG e-liquids (usually 70% VG or higher) to produce thick clouds. Lower nicotine strengths, typically 3-6 mg, are recommended, as higher nicotine levels can be too harsh for DTL vaping. High VG e-liquids provide a smoother inhale and minimise throat hit, which complements the direct-to-lung style.

What Wattage Should I Use with a Sub-Ohm Tank?

The ideal wattage depends on the specific coil being used. Most sub-ohm coils are designed to operate within a range, such as 40W-80W or 60W-120W. Exceeding the recommended wattage can burn out the coil faster, while staying within the suggested range helps to balance flavour and vapour production.

How Often Should I Replace the Coil in My Sub-Ohm Tank?

Coil lifespan in sub-ohm tanks typically ranges from 1-2 weeks, though it can vary based on usage and e-liquid type. Sweet or high-VG e-liquids tend to shorten coil life, as they create more residue on the coil. A burnt taste, reduced flavour, or lower vapour production are signs it’s time to change the coil.

Why is My Sub-Ohm Tank Leaking, and How Can I Prevent It?

Leaks can happen if the tank is overfilled, if the coil isn’t securely installed, or if the e-liquid is too thin (low VG). To prevent leaks, ensure the coil and tank parts are tightly fitted, use an appropriate VG level, and avoid laying the tank horizontally. Regular cleaning and replacing worn seals can also help reduce leaking.