Permeable FabricAir ducts are ideal for providing draft-free cold air supply while simultaneously preventing the formation of condensation on the duct surface.
FabricAir achieves specific permeabilities using fabrics that are woven to specification. Some manufacturers use a calendaring or thermo-fixation process, which after a single wash loses its' form leading to unpredictable permeability.
The ducts are spot tested, per ISO 9001 quality standards, at our production facility to ensure that the fabric permeability is within acceptable tolerances. FabricAir ducts will retain the specified permeability to withn 5% over the lifetime of the duct.