The OXYVAP® pad is a modular "plug and play" highly efficient direct evaporative cooling pad including an aluminum frame with integrated water distribution for use in compact direct evaporative cooling and humidification systems. Its modular design offers customers the necessary flexibility to accommodate for different airflow capacities as required in their product portfolios while maintaining the individual component performance characteristics.


The evaporative media is based upon our unique and patented water retaining finned aluminium sheet designed for maximum evaporation. At an air velocity of 2 m/s, we reach a saturation efficiency of 90% with an air pressure drop of only 44 Pa.

The high-quality aluminum fins in combination with its unique and patented structure allow for a self-cleaning process during the operating mode, hence preventing the buildup of dirt, mold or calcium, which is typically a problem in competitive evaporative cooling media. In fact, the OXYVAP® has the German VDI 6022 hygienic certificate.

VDI 6022


The OXYVAP® can be applied in air handling units for both the air humidification and for adiabatic cooling. It can also be applied as a droplet eliminator in combination with a high-pressure spray system for air humidification.

The OXYVAP® is also very suitable for applications to pre-cool the air for a condenser coil in a traditional air conditioner.


Another interesting application is to use the OXYVAP to adiabatically cool the air before a condenser coil in a traditional air conditioning system, giving the following important benefits: 


  • Energy savings of up to 30%
  • Lower compressor peak loads
  • Increased chiller lifetime
  • Lower fan speed => lower noise level
OXYVAP Modulair
OXYVAP before condenser coil Condenser pre-cooling graph



The OXYVAP is available in the following standard sizes:



Ref. Code


Total WxH


Width mm


Height mm

Frontal finned Surface 




air flow

Saturation efficiency

Air pressure drop Pa

OXYVAP Mod. 303/301/96 303x301 mm 276 mm 242 mm 0.067 m2 2.0 m/s 481 m3/h 90% 44 Pa
OXYVAP Mod. 303/601/96 303x601 mm 276 mm 542 mm 0.150 m2 2.0 m/s 1 077 m3/h 90% 44 Pa
OXYVAP Mod. 505/601/96 505x601 mm 478 mm 542 mm 0.259 m2 2.0 m/s 1 865 m3/h 90% 44 Pa
OXYVAP Mod. 601/601/96 601x601 mm 574 mm 542 mm 0.311 m2 2.0 m/s 2 240 m3/h 90% 44 Pa
OXYVAP Mod. 303/901/96 303x901 mm 276 mm 842 mm 0.232 m2 2.0 m/s 1 673 m3/h 90% 44 Pa
OXYVAP Mod. 505/901/96 505x901 mm 478 mm 842 mm 0.402 m2 2.0 m/s 2 898 m3/h 90% 44 Pa
OXYVAP Mod. 601/901/96 601x901 mm 574 mm 842 mm 0.483 m2 2.0 m/s 3 480 m3/h 90% 44 Pa
OXYVAP Mod. 601/937/96 601x937 mm 574 mm 878 mm 0.504 m2 2.0 m/s 3 629 m3/h 90% 44 Pa
OXYVAP Mod. 892/601/96 892x601 mm 865 mm 542 mm 0.469 m2 2.0 m/s 3 376 m3/h 90% 44 Pa
OXYVAP Mod. 892/901/96 892x901 mm 865 mm 842 mm 0.728 m2 2.0 m/s 5 244 m3/h 90% 44 Pa
OXYVAP Mod. 892/937/96 892x937 mm 865 mm 878 mm 0.759 m2 2.0 m/s 5 468 m3/h 90% 44 Pa


OXYVAP dimensions


OXYVAP section OXYVAP screw slot




The pads can be easily clicked together both horizontally and vertically to get the desired surface. The standard frame will be self-supporting for sizes up to 200 cm in height. For larger sizes, we recommend to use an additional OXYCOM support frame.

An OXYVAP Wall is designed as a cascade system. Water is re-distributed between the OXYVAPs as indicated in the example below:

OXYVAP water distribution top

 Water dstribution system between OXYVAPs

OXYVAP water distribution middle

Water collection at lower OXYVAPs

OXYVAP water collection bottom


Below is an example of a large OXYVAP adiabatic cooling wall used for the cooling in a Data Center:

OXYVAP adiabatic cooling wall



When using the optional OXYCOM frame the pads can be individually changed without having to disassemble the entire structure: Plug in and out


Below is an example of an OXYVAP PreCool installation setup. A big advantage of this system is that you can easily “click off” the OXYVAP pads. This easy removal of the pads can be helpful for maintenance or it can be useful for example to remove the pads if for a period during the year no adiabatic cooling is required. Therefore, you can eliminate the additional pressure drop and make the system more efficient all year round.

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