Means for blowing an exhaust air stream

An embodiment of a device for blowing an exhaust air stream comprises a housing cover (100) having an outlet area (140) and a filter holder (360) disposed at a downstream end of an air guide passage for guiding the exhaust air flow and is sealed against the air duct, that the exhaust air flow mainly to. Filter holder (360) passes along a flow direction (320), wherein the housing cover (100) is adapted to be opened and to disengage it from the filter holder (360). The housing cover (100) is sealed to the filter holder (360) via in each case at least one surface (310, 400) of the housing cover (100) and the filter holder (360) in a closed state of the housing cover (100) so that the exhaust air flow from the air duct enters the outlet area (140), said surfaces (310, 400) of the housing cover (100) and the filter holder (360) facing in the closed condition each other and are disposed parallel to the flow direction (320) substantially.