Self-regulating air vents, manufactured from injection moulded polystyrene and available in three air volume range (22, 30, 36 and 45 m3/h).
Fitted in openings measuring 354×12 mm.
Suitable for installation on window joinery by crews. The air inlet acoustic element is placed on the indoor side while the cover is fitted on the external side of the joinery.
An additional acoustic element can be slot into the air inlet (ECA+RA).