Valve at the top of the window:

Lets in and out warm and cold air

Ventilation window

• The ventilation window is supplied with wood and aluminium so that the external part is protected from the different weather conditions.
  
  
• At the same time, the ventilation window will have the same exterior design as the building's other windows and doors.
  
  
• The ventilation window can be supplied as either a fixed sash window or a top-turning window.
  
  
• In order to be able to clean the space between the outer and the inner glass, the inner part can be opened.
  
  
• At the bottom of the ventilation window there is an air intake, and at the top is a multi-functional electronically controlled valve that acts according to a defined control system, as showed below.