Two airflows in one duct

The FabricAir® VarioDuct™ provides different flow models for cooling and/or heating purposes. It is tailored with an internal membrane that separates the two airflows. Depending on which flow pattern location is needed, a damper changes position and moves the internal membrane either up or down covering half of the duct.


High heating and cooling capacity

No compromise on comfort level switching from heating to cooling


Can easily adapt to different air volumes, air pressures and temperatures

Easy installation

The connection between damper and membrane is one zipper away

The FabricAir® VarioDuct™ features an internal membrane to separate the two airflows for heating and/or cooling purposes. This membrane is kept in place by the static pressure and thus does not flutter, providing the perfect airflow for each purpose – heating or cooling.

The connection between damper and membrane is one zipper away–fast and easy! The membrane solution is available for any length of round duct including horizontal bends and concentric transitions. The color of the damper can be matched to the fabric. The damper is operated manually or automatically with a motorized actuator, allowing the membrane to switch positions. The damper can be controlled using a simple room sensor or via the building’s BMS system.


Malmö Mässan, Sweden

We maintain an excellent indoor climate under all conditions, and the fabric ducts in the halls work perfectly.
We couldn’t imagine a better solution!

Lasse Larsson, Managing Director, Malmö Mässan

VarioDuct brochure

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VarioDuct video

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Installation guide

Installation of VarioDuct is extremely simple. But if you need some assistance, download the full installation guide by clicking the button below.

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