Principle function
On the inside of the textile duct is an impermeable layer that can be oriented to the top or bottom of the duct by a special motor, what determines which of the systems will be used.

Cooling
During the cooling process, the top side of the outlet is active while the bottom part is covered with an impermeable layer.

Due to the higher density of the cool air, the supply air will fall downwards, however at a much lower velocity than if distribution elements would be used. This makes cooling much more comfortable for the people in the occupied zone.

Heating
In the case of heating, the lower part of the textile duct is active. As a result, the warm air is distributed into the room primarily through the distribution elements, which provide the necessary velocity to reach the bottom of the room.

At the same time, the impermeable layer inside the duct prevents the warm air from escaping through the textile and heating the ceiling