What is Sub-ohm vaping...


What is it, you say? Of course, if you're reading this, you probably have a vague idea of what it's all about, but just in case...


Simply put, sub-ohm vaping is vaping on a device whose atomizer coils have a resistance of less than one ohm.


And why would you sub-ohm vape?


Well, because it increases the power output of fixed voltage devices like mechanical vape mods and non-variable regulated devices to pack more vapour or flavour.


Wait, what's an ohm?


Electrical current is measured in amps and length measured in meters. The resistance of a coil is measured in ohms - occasionally seen as the symbol Ω.


Cool? Cool. We'll continue.


You might be wondering: is sub-ohm vaping dangerous?


eJuice, Nicotine and Sub-OHM Vaping


When vaping with sub-ohm coils, a huge amount of vapour is produced compared to using coils above one ohm on the same device.


Sub-ohm vapers take lung hits. This means they inhale straight to their lungs to increase the vapour they can inhale with each puff. Those who vape sub-ohm generally favour eJuice with a higher percentage of vegetable glycerin than propylene glycol. The reason for this is that the vegetable glycerin creates bigger clouds, coupled with a denser production of vapour.


Usually, those vaping sub-ohm will also use lower nicotine strengths (typically 6mg or less) as opposed to those vaping above  one ohm because of the additional vapour produced and inhaled with each pull.


Sub-OHM Vaping Using VV/VW Devices


Although it has become quite a trend for people to use variable voltage and wattage devices for sub-ohm vaping, it's unnecessary.


Sub-ohm vaping evolved as a method of increasing power to the coils beyond the safety capacity of regulated devices available during its development. Today, high power regulated devices are available and are capable of delivering a consistent supply of power to the coils, which means you can use the resistance of your choice and adjust it to your taste while potentially outperforming the capacity of even a sub-ohm build on a mechanical vape mod. Low power regulated devices remain the best option for resistances above one ohm.

Sub Tanks


Sub tanks differ from regular tanks because they have a larger airflow. The increased air capacity allows a vaper to take large continuous draws with little effort, in turn, increasing the amount of vapour inhaled, resulting in colossal clouds. The other reason for the substantial airflow is to keep the heating element, or coil, cool when drawing in. Coils must stay cool, otherwise they'll overheat, resulting in a burnt taste (not a flavour of eJuice you'd want to buy!). Sub tanks require their own type of battery due as they are hotter than regular tanks and need to sustain more power.


What to Remember When Sub-OHM Vaping


  • Sub tanks should only be used on sub-ready batteries.

  • Sub batteries can handle regular tanks with ease but batteries that have variable power should be turned right down to avoid burning out the coil.

  • The rechargeable batteries that fit into the mods are high performance and any substitute will not work.

  • Sub tanks require high VG liquids.

  • Sub liquids should contain a low nicotine content.

  • When using a new coil in a sub tank, the coil has to be totally saturated in the liquid - otherwise the wire inside will get hot and burn the cotton, resulting in an undesirable ‘dry hit’ - nasty on the throat.


So, there you have it: our quick beginner’s guide to sub-ohm vaping. We hope you find this helpful and for all of your vaping needs, check out our online store.