X-AIR Semi-Closed System

Including CO2 dosing directly into moving air

Read more
« X»
  • X-AIR Semi-Closed System
  • X-AIR Semi-Closed System

A new era for Semi-Close greenhouse growing!
The Dalsem X-AIR Semi-Close Greenhouse Solution with the X-AIR Semi-Closed System adds new dimensions to the current approaches for greenhouse growing.

  • The perfect symbiosis of knowledge, technology and data control.
    No resources are wasted, water is re-used and energy consumption is kept to a minimum.
    Yield and production quality are optimized due to the use of Data Driven Growing without need of a highly experienced grower.
  • The Data Driven Growing Strategy will improve yield, avoids human error and therefore will attract more capital to the greenhouse industry.
  • Sustainability due to our solution and the introduction of the X-AIR Semi-Closed System.
    Your greenhouse will generate more production compared to current greenhouses, in some cases up to 10%, whilst saving energy (up to 20%) and CO2.


Dalsem has developed a new method for CO₂ dosing, which is more effective than any other CO₂ distribution method used in horticulture today. From the distribution point in the greenhouse, a pipe system is installed underground and leads upwards over the columns to the X-AIR Semi-Closed System. By dosing the CO₂ in front of the fan blades, the CO₂ mixes directly with the air blown from the X-AIR Semi-Closed System and evenly distributes the CO₂ in the greenhouse. 

Inserting CO₂ into flowing air is perfect for the plant photosynthesis. The moving air reduces the boundary layer resistance and increases the efficiency of photosynthesis, whilst bringing CO₂ to the stomata. An additional advantage is the distribution of the CO₂ from top to bottom in the greenhouse, contrary to other methods currently available. By using this method, the CO₂ accurately reaches the stomata or leaf pores of the plant and is absorbed most effectively.  

Get in contact

we will contact you shortly

Read in our Privacy Statement how we handle your personal data.

Back to Top