How Sub-Ohm Vapes Work

How Sub-Ohm Vapes Work

While it’s certainly controversial, sub-ohm vapes aren’t categorically good or bad. The guest post below looks into how sub-ohm vaping actually works.

Guest post by Ashley Wilson

Sub-ohm vaping, or sub-ohming is a hot and somewhat controversial trend for vapers. The most visible effect is the big clouds that vapers can make with sub-ohm coils, but it’s about much more than just aesthetics.

Sub-ohm vapes allow users to atomize their e-liquids into more and smaller particulates, which vastly increases the surface area that comes into contact with the vaper’s taste buds and mucous membranes when inhaling.

As a result, vapers can achieve fuller flavor and higher nicotine intake with smaller amounts of e-liquids than they could with regular vaping devices.

How Sub-Ohm Vapes Work – It’s In the Coil

A normal vapor coil has a resistance of about 1-3 ohms. Coils with lower resistance can conduct more electricity, increasing the amperage that the device uses.


A sub-ohm coil uses this principle to deliver much more power to your e-juice than a traditional vapor coil. This extra energy breaks the e-liquid into smaller particles, creating bigger, more impressive clouds with much more total surface area than a normal device does.

Risks of Sub-Ohming

Sub-ohm vaping isn’t controversial for it’s vaping results so much as its associated risks. By drawing more current, a sub-ohm coil will put a lot of additional strain on your battery.

This can potentially cause it to overheat and fail catastrophically, especially if your device isn’t designed to accommodate this additional strain. The resulting explosion can cause serious injuries, and critics of sub-ohm vapes tend to avoid it for this reason.

In actuality, the risks associated with sub-ohm vaping are primarily associated with using improper equipment. All parts of your vaping equipment need to be designed to manage the additional strain, and all sub-ohm vaping devices need proper battery vents to deal with any battery failure.

sub-ohm vapes coils

Vapers also need to keep their devices properly cleaned, and be acutely aware of the state of their batteries, discarding old and damaged ones and changing them frequently.

What Kinds of E-liquids to Use in Sub-Ohm Vapes

With regular vaping devices, the amount of nicotine absorbed from a milliliter of e-liquid roughly corresponds to a cigarette. Sub-ohming, on the other hand, greatly increases the amount of nicotine absorbed from your e-liquid.

That means that even a low 6 mg e-liquid might be sufficient for a vaper that was previously using 18 mg vape juice. Using high nic e-liquids can even be dangerous, because it can allow a vaper to absorb a very high amount of nicotine in a very short amount of time, potentially leading to nicotine poisoning.

Because of this, it’s important to start off with a low-nicotine e-juice, and to find your preferred level from there.

Sub-ohm Vapes Produce Bigger Clouds

While it’s certainly controversial, sub-ohm vaping isn’t categorically good or bad. It’s simply a way to get more out of your e-juice, and to blow bigger clouds.

Doing this properly and safely requires vapers to develop a better understanding of how their devices work, and to take appropriate precautions.

Because of this, it’s not something to embark on casually, and vapers need to do their research before getting started using sub-ohm vapes.

About the Author
Ashley Wilson is an avid vaper, and writes on the topic all over the web for, a top-of-the-line vape shop that offers all your favorite e-liquid brands.

Facebook Comments

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Sign Up for a Free Ebook!

Vaping for Beginners

We respect your privacy.