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What makes a really good rebuildable atomizer? This is exactly the question we have
spent the last 10 years crafting answers that have proven themselves in the real world.

The Kayfun X builds on that experience and brings together the best solutions of our MTL
Atomizers of the last decade with trendsetting new functions.


The features at a glance:

  • [NEW!] AEROKON Airflow Control
  • [NEW!] “CCS” filling mechanism for quick and easy refilling
  • [NEW!] Engraving and opening direction freely positionable
  • [NEW!] PSU window
  • PEEK insulator
  • Internal Airflow Control (continuously)
  • 316L stainless steel
  • 510 connector
  • Serial number for authentication
  • Easy assembly and maintenance
  • Premium quality "Made in Germany"

Diameter: 24mm

Length: 42.5mm (not including 510 thread or tip)

Capacity: 3.5ml 

Single Coil Build


Aerokon AFC

For the Kayfun X, the atomizer base has been completely revised and equipped with a new airflow control.

The AEROKON Airflow Control is the first system for MTL tank evaporators that does not restrict the air flow at the entrance of the air duct, but only directly below the coil. This creates an acceleration in the air flow on the coil, which is delivered more evenly.


  • Better performance on MTL setups
  • Better taste
  • Optimized vapor saturation
  • Quiet
  • Sealed 510 connector


Filling with “CCS” mechanism

This is how fast and easy filling has become:


  • Pull up the top cap until you feel 2 clicks - the second click closes the liquid channels within the same movement
  • Press against the engraving to push the top cap aside and reveal the filling port
  • Fill up
  • Seal
  • Done


Simple, fast & without a mess.

Position the logo and opening direction freely

The Top cap will always slide in the direction where the engraved logo sits. If you want to align it perfectly with the mod, you only have to pull up the Atomizer until you feel a click, then turn it to the desired position and lock it again.

What is PSU?

Polysulfones are a class of high-performance thermoplastics. They are known for their toughness and stability at high temperatures. They are also used in the medical area of applications. Other properties are:


  • temperature resistant
  • chemical resistance
  • durability
  • biocompatible
  • physiologically harmless


Scope of delivery:

1x Kayfun X
1x Kayfun X - Spare Kit

Customer Reviews

Based on 2 reviews
Very good product and customer service!

Kayfuns are always a 5-star, if you havent tried it you should specially if youre into mtl, you can never go wrong with a kayfun. Vapr's customer service is top notch! I like it when shops give me stickers so expect one from your order!

Kayfun X

The tank is everything you would expect from Kayfun. It brings out the flavor with a nice MTL draw. Awesome