If you have stumbled across sub-ohm vape kits and tanks, you may be wondering... what exactly is sub-ohm vaping?
Sub-ohm vaping is using a device whereby the atomiser (the element responsible for actually vaporising your e-liquid) has a resistance of less than one ohm.
A bit confused? Not to worry.
In simpler terms, this helps to increase the power output on devices that have a fixed voltage, which is what helps create the huge vapour output of some e-cigarettes.
Some vapers enjoy the heady benefits of a sub-ohm device, whereas others prefer a normal mod that requires less overall maintenance. In truth, neither has any distinct advantage over the other. It largely boils down to the level of experience of the vaper, and whether you want cloud-like vapour or would rather a more average output and easier mod.
To give you more insight, we’ve created this short guide to share some of the pros and cons of picking up a sub-ohm mod…
How Does Sub-Ohm Vaping Work?
In devices that use a power source with a fixed wattage, (e.g. a battery) decreasing the resistance (read: ‘ohms’) of the coils can actually help to increase the overall power output of the device. This means more bang-for-your-buck on each inhale, but it also means a lot of consideration must be given to the safety and integrity of the device.
Reducing the resistance increases the amperage used to power the atomiser and create the vapour. In turn, the battery comes under a more intense strain, which can cause excessive heat to be produced by both the battery itself and the coils within your device, which may pose as a hazard if used by someone who does not properly understand the intricacies of the device they’re using.
With this in mind, it is vital that vapers never go above the amperage limit of their battery, as this can lead to a severe accident.
However, if you follow the correct advice, you will be able to safely enjoy the benefits of enhancing your vape sessions.
For advice on battery safety, check out our guide here.
The key reason that vapers opt for sub-ohm vaping is the cloud-like output that smaller devices can produce, thanks to the enhanced power thanks to reduced resistance.
Most sub-ohm vapers take lung-hits – which is inhaling the vapour deeply into their lungs - and create substantially more vapour per inhale. Coupling this with lower-nicotine VG-liquids, they get less of a throat hit, more vapour, need lower quantities of nicotine and still get to enjoy the precipitous clouds.
Choosing And Maintaining Your Sub-Ohm Mod
Here are some ‘do’s and don'ts' to keep you safe:
You may have come across vape-related horror stories, in particular those of the sub-ohm variety, but there is little reason to worry, as long as you understand the device you use.
To start with, be sure to attach a low resistance coil, screwed in to an appropriate tank with a battery that is able to handle the power output. You can adapt the output to your preference, but be sure to stick within the manufacturer’s recommendations as this is extremely important to avoid explosion.
Once set up, take a hit and marvel at the power of your vapour-producing lungs.
For all sub-ohm vapers out there, the key to a safe experience is keeping your mod in a clean, working order. Be sure to check all vents, contacts and the switch regularly, ensuring the spring remains tight (and doesn’t risk failure) and be sure to keep the device locked when not in use.
Should I Use A Sub-Ohm Device?
As we’ve highlighted, sub-ohm vaping tends to be for the more experienced vapers who have a dedication to the cause (given the more involved maintenance and usage considerations) rather than for those just looking for something different. It is worth a try if you prize the quality of each inhale, but just be aware of the increased attention required to ensure the device remains safe and stable over the long term.
That said, there are more user-friendly sub-ohm mods for those considering a trial run.
The Aspire NX40 Box Mod is a compact but heavy-duty mod, able to adjust to any changes you wish to make. If you're looking for a specific tank, the VooPoo TPP-X Pod Tank is a good option for those stepping into the market who still want some flexibility around airflow.
Choosing An E-Liquid
When switching to a sub-ohm device, you might opt for a lower nicotine strength with a higher-VG content. Increased vapour can be a bit harsh on the throat, but less nicotine will offset this.
50:50 VG splits can be fine, but it’s worth trialing a few options until you find the smoothest experience for you.
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There is certainly a move towards sub-ohm devices for the committed vapers among us, with most enjoying the enhanced vapour cloud produced on each exhale. While this is a genuine benefit for those who actively enjoy vaping, beware the onlooker who may take offence to the cloud that suddenly envelopes them as you pass by.
It would be fair to say the devices are more appropriate for outdoor (or well ventilated) environments to avoid the risk of upsetting those around you. So, if you do make the switch, be sure to have a more discrete vape to hand, so as not to deprive yourself in certain situations.