Ventilation device for e.g. window frame, comprises elongated frame with replaceable frame extending over ventilation conduit cross section at ambient air inlet opening

摘要

The device (1) extends between an installation cavity (16) provided in the window or ventilation hatch frame (2) and allowing ambient air (3) to flow through it. The device comprises an elongated frame with at least one opening to allow air to flow through it. Housed inside the frame is at least one replaceable frame (13) extending over substantially the entire ventilation conduit cross-section where the inlet opening (12) for ambient air is present. A replaceable filter (14) is optionally mounted in the replaceable frame.