What is a Sub-ohm Tank?
A sub-ohm tank is a device, whose atomizer coils have a resistance less than one ohm. The term ‘sub-ohm’ refers to the resistance of atomizer coils. When someone says, they have a sub-ohm tank, it means their device has a resistance less than 1 ohm. One of the reasons why professional vapers use sub-ohm tanks for vaping is to exaggerate the power output of fixed voltage devices so that more vapor or flavor can be created.
How does a Sub-Ohm tank work?
All mechanical mods, e cigarettes and regulated mods are electrical devices. Like any electrical device, they have a battery attached. The sub-ohm tanks use the principles of Joule’s and Ohm’s laws of electricity to make the device work.  By following these laws, a non-variable voltage source like a battery in a mechanical mod will give more power output if the resistance of the coils is decreased. A sub-ohm tanks in this way.
Is a Sub-Ohm tank safe?
If you are smart enough, sub-ohm tank for flavor is completely safe. When the resistance of the coil is decreased, you will have to increase the amperage of the device to supply the necessary current to the battery. When the amperage is increased, it results in the battery getting heated up. If you keep on increasing the amperage and exceed the limit of the amperage of your battery, it might result in an explosion or fire.
3 Best Sub-Ohm Tanks for Flavor
Here we have listed 3 of the best sub-ohm tanks for flavor that you will instantly fall in love with. Let’s get started:
Freemax Fireluke Mesh

Freemax is a leading vape company, when it comes to sub-ohm tanks. Their sub-ohm tanks are available in a wide range of styles and colors to offer you the personalization you seek. The Fireluke Mesh has mesh kanthal coil heads, which enhance the flavor and increase surface area. One of the advantages of mesh is they last longer than orthodox coils. Some of the highlights of the Fireluke Mesh include, smooth threading, no leaking, top coil longevity,  superior vapor/flavor production, wide fill ports and cool body. The only con of this sub-ohm tank for flavor is that if you want to replace the coil heads, you have to empty the tank first.  
Falcon by Horizon

Horizontech is not a name in the vaping industry. They have established a good reputation for themselves with their innovative products. Falcon is one of their most advanced products that is ahead than its competitors. By using mash, flex and wood pulp that is paired with cotton – Falcon delivers top quality flavor. The pros of Falcon include: exceptional flavor at midrange wattage, cool wicking materials, superior coil longevity and short coil break-in time. The cons include, there is a slight leakage with coil head, and no RBA included.
Uwell Crown 3
Unwell Crown 3 is one of the most popular sub-ohm tanks in the world. It is a 24.5 mm tank, which can hold 5 ml of e liquid. It has a creative design which has smooth bottom airflow. The pros of Uwell Crown 3 include, coils break in fast, top build quality, handles extreme power, smooth airflow, accompanied with locking top, and easy to half-twist top fill.