Skip to content
Commercial line

Commercial line

Commercial line

ATREA's DUPLEX units can offer all three types of heat recovery exchangers (counterflow, cross-flow, rotary wheels).

Their sales philosophies differ; hence, they cover different market segments. The compact unit ventilators DUPLEX series of the COMMERCIAL LINE are of the airflow rate between 500–15.000 m3/h. These are used for comfort ventilation, as well as warm-air heating and cooling of small office areas, shops, retail facilities, school buildings, restaurants etc. The units are very suitable for all facilites for their excellent compactness, high-efficient heat recovery, low power consumption of fans and minimum noise level.
All commercial air handling units can be used as a part of our innovative central ventilation systems.


  • All three types of heat recovery exchangers (counterflow, cross-flow, rotary wheels)
  • All possible positions (floorstanding, underceiling, flat, rooftop)
  • Excellent compactness
  • Plug´n´play mode
  • ebm-papst/Ziehl-Abegg EC fans
  • Indoor or outdoor versions
  • Heating/cooling within the units
  • PHI/Eurovent certifications
  • Modbus TCP, BACnet/KNX


General benefits of compact air handling units by ATREA.


Compact dimensions with an emphasis on depth and smart solutions for limited installation spaces.

Low weight

ATREA air handling units are easy to handle thanks to plastic heat recovery core and lightweight casing insulation.

Highly efficiency

High efficient heat recovery cores developed and produced by ATREA and energy saving top class fans.

Own control system

The high-tech control system developed and manufactured in house is tailored to our air handling units and used throughout the whole portfolio.

Cookies consent

For the best experience of using our website, we need your consent to the processing of cookies. These are small files that are temporarily stored in your browser. Thank you for giving it to us and helping us to further improve the website.