Abstract: A breather device for use in a vent hole of a double glazed window sash is provided and comprises an elongated hollow sleeve member extending into the vent hole and having opposite interior and exterior ends, and a plurality of resilient fingers extending axially from the exterior end of the sleeve member with each finger terminating in a radially inwardly extending tip portion. The fingers and tip portions of the device are closely spaced so as to inhibit entry of foreign matter into the sleeve and are resilient so as to deflect radially outwardly when a cleaning tool is inserted through the device for removing any foreign matter therein.