Kayfun 5² S.E - 25mm

.SvoëMesto Kayfun 5² SE 

The Kayfun 5² is the high-performance atomizer of the Kayfun series, combining simplicity, functionality and outstanding flavor. It’s purely made for direct lung vaping with a maximum airflow of 4mm.

Made in German


Availability: Out of stock

SvoëMesto Kayfun 5² S.E.   


The Kayfun 5² is the high-performance atomizer of the Kayfun series, combining simplicity, functionality and outstanding flavor. A fully adjustable liquid control gives you full control over your liquid flow, however, thanks to SvoëMesto’s pressure-based feeding system, fine-tuning is not required with the majority of setups. After closing the liquid control, the Kayfun 5² can easily be filled through the top within a couple of seconds. Just as simple as filling it, is accessing your coil by removing the tank, regardless if it’s filled or not. The build deck has been enlarged to fit complex builds like clapton coils more easily.  At the same time SvoëMesto has increased the adjustable airflow to a maximum of 4mm, providing more even more airflow for high performance builds.

The airflow control can be adjusted externally and has 3 positions: 

  • 3mm
  • 3,5mm
  • 4mm 

The internal design of the evaporation chamber has been optimized to create an outstanding flavor profile, Kayfun fans have grown to love, even at higher airflow settings.

As with previous models, the Kayfun 5² only utilizes highest grade materials. Thanks to its intelligent design, cleaning and maintenance can be done by disassembling the atomizer into no more than five pieces, no tools required.
It’s functionality, intuitive handling and rich flavor profile combined with great performance capabilities makes the Kayfun 5² a true daily driver.


  • engraved tank shield with PSU window
  • increased tank volume
  • 810 topcap with PSU driptip


What is PSU?

Polysulfones are a family of high performance thermoplastics. These polymers are known for their toughness and stability at high temperatures. They are widely used for medical applications. Further qualities are:

  • temperature resistance
  • chemical resistance
  • durability
  • biocompatible
  • physiological unobjectionable


Technical features

  • Anti heat 810 PSU driptip 
  • Top filling
  • PSU window 
  • Liquid control (fully adjustable) 
  • enlarged build deck -> comfort building 
  • M4 build screws 
  • PEEK insulator 
  • Increased maximum liquid flow
  • External airflow control 
  • Increased maximum airflow 
  • 316L stainless steel 
  • 510 connector 
  • Serialnumber for authentication
  • Easy assembly and maintenance 



  • Diameter: 25mm
  • Height: 62,5mm (without mouthpiece)
  • Tank capacity: 7ml





Stainless steel components

WNr. 1.4404 (X2CrNiMo17-12-2), AISI 316L, (V4A)

Window/ 810 driptip

PSU (Polysulfone)




NBR 70 


Scope of delivery:

  • 1 Kayfun 5² SE with engraved tankshield
  • PSU window and 810 driptip
  • 1 spare kit
  • 1 user manual
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