What is Sub Ohm Vaping? A to Z (Guide)

Everything is evolving in the vaping world, and the sub-ohm vaping community is not far behind. That’s why we can do cloud chasing and various vape tricks.

Have you ever been fascinated by the massive thick cloud that some vapers do? Or the dragon-like plumes that others exhale?

Maybe you were just curious about how they do it. Let us explain how sub-ohm vaping works and what you need for it.

What is Sub-ohm Vaping?

What is Sub-ohm Vaping

Sub-ohm vaping is a vaping style that uses coils with a resistance lower than one ohm.

This allows the vaper to produce big vapor clouds and experience a more intense flavor. But, this vaping style needs special pieces of equipment.

You can not generate a massive cloud with disposable vape pens. You must have to go for a box mod that is capable of sub-ohm vaping.

Why Do People Sub-Ohm Vape?

Sub-ohm Vaping Details

The popularity of sub-ohm vaping has grown exponentially in recent years. Vapers enjoy doing it because it gives them a more intense flavor and bigger vapor clouds.

It’s also a way to show off their vaping skills. Some vapers even compete in cloud-chasing competitions to see who can create the biggest clouds.

What Factors Contribute to Sub Ohm Vaping?

Mainly four factors contribute to achieving a sub-ohm vaping experience. These are mentioned below:

1. Coil Resistance

Vape Coil

The coil resistance is deciding factor for the sub-ohm vaping result. You can not achieve it with a high-resistance vape coil.

A standard coil has a resistance of more than 1 ohm. But, you need to go lower than one for sub-ohm vaping. The most common coil resistances used for sub-ohm vaping are 0.5, 0.2, and 0.15 ohms.

2. Vape Tank

SMOK TFV8 Sub Ohm Tank

Vape tanks play a vital role in sub-ohm vaping. Not all vape tanks are designed for sub-ohm vaping.

You need a special type of vape tank that can accommodate low-resistance coils. These are called Sub-ohm tanks or rebuildable atomizers (RBAs).

3. Power Wattage

High Power Watt Mod

You need more power to heat the vape coil to generate a bigger cloud. So, for sub-ohm vaping, high-power wattage vape mods are required.

Your coil resistance will also determine the wattage level. For example, if you use a 0.5-ohm coil, you need at least 80 watts of power. But, if you use a 0.15-ohm coil, you need around 100 watts.

It’s recommended to go with more than 150W vape mod to generate more heat and, ultimately bigger cloud.

4. Battery Capacity

High Capacity Vape Battery

As sub-ohm vaping requires more wattage, it also needs a bigger battery capacity. The battery must be able to provide enough current to heat the coil properly.

You must have to go with dual 18650 battery mods for sub-ohm vaping. These batteries can provide the required power and also have a long life.

What are Different Types Of Sub-ohm Tanks?

Smok Sub-ohm Tank

There are various types of sub-ohm tanks available in the market. Each one has its own advantage and disadvantage.

1. Sub-ohm disposable tanks

These special types of sub-ohm tanks come with a disposable sub-ohm vape coil. You do not need to rebuild the coil. Just replace the whole tank when the coil becomes burnt out. These are very easy to use and maintain.

2. Sub-ohm disposable pods

These are similar to disposable tanks but come in a pod form factor. They are very compact and easy to use. You just need to insert a new pod when the coil becomes burnt out.

3. Rebuildable Tank Atomiser (RTA)

These types of tanks allow you to rebuild your own coils. RTAs come with a deck on which you can build coils.

These are perfect for experienced vapers who want to experiment with different types of coils.

4. Rebuildable Dripping Atomiser (RDA)

These drippers come with a deck on which you can build coils. RDAs do not have a tank. You need to drip e-liquid directly onto the coil and wick.

These are perfect for experienced vapers who want to experiment with different types of coil resistance.

5. Rebuildable Dripping Tank Atomiser (RDTA)

These are similar to RDAs but come with a tank. This means you do not need to drip e-liquid directly onto the coil and wick.

These are perfect for experienced vapers who want to experiment with different types of coils.

What Are The Disadvantages Of Sub-Ohm Vaping?

Even though sub-ohm vaping has many benefits, there are also some disadvantages.

  1. It uses up e-liquid very quickly.
  2. It produces more heat and can be uncomfortable to vape at high wattages.
  3. It requires a higher level of knowledge to set up and use properly.
  4. It can be dangerous if not used correctly.

Despite all these disadvantages, sub-ohm vaping is still a great way to experience bigger clouds and better flavor.

Just be sure to do your research and use proper safety precautions.

How To Choose the Right Vape Juice For Sub Ohm Vaping?

Your vape juice also plays an important role in sub-ohm vaping. Not all vape juices are suitable for this type of vaping.

For sub-ohm vaping, you need a vape juice with high VG content and low nicotine strength. The VG is thicker than PG, and it produces more vapor.

So, using a 70/30 (VG/PG) ratio for sub-ohm vaping is better. As for nicotine strength, 3mg (0.3%) or 6mg (036%) is enough.

Anything higher than that can be too harsh on the throat. Sub-ohm vaping is all about producing big clouds and intense flavor.

What Are the Risks of Sub Ohm Vaping?

Sub-ohm vaping is not for everyone. It’s only meant for experienced vapers who know how to handle high wattage mods and low resistance coils.

If you’re a beginner, staying away from sub-ohm vaping is better. Otherwise, you might damage your device or, even worse, hurt yourself.

Sub-ohm vaping can be dangerous if you don’t know what you’re doing. So, make sure to do your research before trying it out.

How To Start Sub-Ohm Vaping?

If you’re an experienced vaper and want to try out sub-ohm vaping, there are a few things you need to do first.

First, you must buy a high-powered vape mod and a sub-ohm tank. Then, you need to choose the right vape juice. Once you have these things, you’re ready to start sub-ohm vaping.

Just remember to start slow and be careful. Sub-ohm vaping can be intense and can burn your throat, so take it easy at first and go start with Mouth To Lung (MTL) style only.

What is Mouth To Lung (MTL) Vaping?

MTL Vaping

Mouth-to-lung (MTL) vaping is a method of inhaling vapor that involves drawing the vapor into your mouth first before taking a breath and exhaling.

This is how most people smoked before the advent of electronic cigarettes, and many vapers still prefer this method as it resembles traditional smoking.

What is Direct To Lung (DTL) Vaping?

DTL Vaping

DTL (Direct-to-Lung) is a type of vaping in which the vapor is inhaled directly into the lungs. Experienced vapers often use this method, as it provides intense flavor and nicotine hits.

To DTL vape, you will need a device that produces a lot of power – typically, this means a box mod or sub-ohm device. You will also need to use high-VG e-liquid, which produces more vapor.

If you are new to vaping, we recommend starting with an MTL (Mouth-to-Lung) device and e-liquid, as this is a less intense way of vaping. Once more experienced, you can move on to DTL vaping.


Sub-ohm vaping is a popular style that gives bigger thick clouds and intense flavor. However, it’s not for everyone. It’s only meant for experienced vapers who know how to handle high wattage mods and low resistance coils.

Hemok was an active tobacco smoker two years back. I used to smoke 12-15 packs of cigarettes every day before shifting to E-Cigarettes. I'll share my vaping journey with readers.

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