What is Sub Ohm Vaping? The Basics of Sub-Ohming, Explained

Vaping is the process of inhaling vapor (aerosol) from an e-cigarette and there are different ways to do it. One of these ways is sub-ohm vaping, but what is it?

Sub-ohm vaping is a style that produces large clouds of vapor that is full of flavor. For you to accomplish sub-ohm vaping, you need a sub-ohm vaping device.

For the production of these large vapor clouds, you need a sub-ohm device that uses coils with lower resistance, about less than an ohm (hence the name sub-ohm) on a high wattage delivering battery. You’ll also need a vape mod that can put out at least 40W although the higher levels could exceed the 200 wattage mark.

The reduced resistance of a sub-ohming device makes your atomizer heat much faster. The increase in the current that goes through your coil will then vaporize more vape juice, thus producing thicker clouds.

When sub-ohming, vapers typically use the DTL vaping style, which means instead of drawing vapor to your mouth then inhaling it to your lungs, you inhale large vapor clouds from the tank straight to your lungs. However, this isn’t the case every time.

Sometimes, the sub-ohm vaping devices have a tighter airflow and a weak battery output. In such cases, the vaper might have to use the MTL style, whereby they suck through the mouth and then puff into the throat or lungs.

When you use the MTL style, the clouds won’t be as big.

Although sub-ohm vaping has a lot of advantages, it’s not highly recommended for new vapers. It might give them a harsh throat hit and result in headaches because of the amount of power produced.

What Vape Juice Should You Use When Sub-Ohm Vaping?

Since sub-ohming has a lot to do with the production of large clouds of vapor, many prefer to use vape juices with a higher VG ratio. Such vape juices also give a lower throat hit, thus enabling a longer inhale.

Is Sub-Ohm Vaping Safe?

Sub-ohm vaping comes with some risks mostly when people don’t properly understand electricity dynamics yet prefer to build their coils. This can cause accidents that could either damage your vaping device or worse, lead to injuries.

However, you’ll be safe if you go for premium vaping materials. To avoid accidents, learn about the different coils available, wattages, and combinations that work for you.

It’s also important that you avoid overheating your battery when the coils are powered.

3 Factors that Affect Your Sub-Ohm Vaping Experience

Sub-ohm vaping is affected by the following:

1. Coil Resistance

Coils with a large surface area will lead to more current conduction because the resistance will be low. Thinner coils will work oppositely since the wattage and resistance are inversely proportional.

2. Wattage

An increase in wattage will produce more heat, more vapor, and will lead to the production of more flavor.

3. Battery Voltage

An increase in the battery voltage will mean a higher wattage except when resistance is also increased.

4 Advantages of Sub-Ohm Vaping

Sub-ohm vaping comes with some advantages. These are:

1. Rich Flavor

The coils of a sub-ohm device can vaporize a lot of vape juice at a time, so every single puff you take will have an intense flavor.

2. Better Airflow

When sub-ohming, there’s a direct lung inhale and airflow is unrestricted. This is because more air is needed to cool down the heat that is produced from the coils.

3. Large Clouds

A lot of vapers find it fun to blow clouds and sub-ohm vaping helps with this. There’s nothing better than a sub-ohm vaping device when it comes to producing the biggest vape clouds.

4. Warm Vape

If you’re the kind of vaper who enjoys a nice, warm vape then you’ll appreciate sub-ohming, thanks to the low-ohm coils that produce warm vapes especially if the wattage is set high.

3 Things that Sub-Ohm Devices Have

For you to practice sub-ohm vaping, you need to have the right devices. The right ones include:

1. Sub-Ohm Tanks

These are made from stainless steel and glass. They’re great for vapers who can’t build their coils but still want to enjoy sub-ohm vaping.

Sub-ohm tanks have low resistance coils that are disposable.

2. Rebuildable Tank Atomizers

Rebuildable tank atomizers (RTAs) are vaping tanks that feature rebuildable decks and which, of course, require the user to build their own coils. Take note that for RTAs, the vape juice is stored in the tank so there’s no need to drip it.

3. Rebuildable Dripping Atomizers

Rebuildable dripping atomizers (RDAs) come with a customized coil and the vaper needs to wrap the cotton around the coil. These atomizers don’t have a tank since the vape juice is dripped on the wick until it’s properly saturated.

Cloud Chasing

For vapers who are into cloud chasing, the safest way to go is to use a sub-ohm vape pen. That’s because it comes with a powerful battery and a tank.

A sub-ohm vape pen is an all-in-one device that is user friendly even for beginners. However, for more experienced vapers, an advanced option would be going for a high wattage box mod.

You can get bigger clouds when sub-ohm vaping by:

  • Using the right batteries. Those with high amp ratings ensure there’s adequate airflow by adjusting it to its most open setting.
  • Using a forceful fast draw. The speed with which you drag will not only increase the cloud production but will also keep your coils cool.
  • Using coils that have a rating of 0.5 ohms and below since they’re able to handle bigger clouds.
  • Using a vape juice with a higher VG ratio.
  • Choosing a mod that has high power, above 40W. You may not be able to use up all the power but it’s worth having that power headroom to get a good vapor volume.


Sub-ohm vaping has gained a lot of popularity because it involves the use of a specialized vaping device. It also provides a great vaping experience which includes the creation of thicker clouds and stronger, more flavorful vapes.

Although it comes with its drawbacks, it has more advantages. Sub-ohm vaping is therefore something you should consider if you’re looking for a new kind of vaping experience.