through the vent pipe 2 my invention comprises a housing 4 which is preferably in the form of a y fitting molded of heat resistant plastic or formed aluminum or a combination of both and is serially inserted within the vent pipe 2 as seen in fig1 one open end 4a of the fitting is connected to that portion of the vent pipe 2 which leads from the dryer the opposite or second open end 4b of the fitting is connected to part of the vent pipe 2 which leads to the vent cover 3 the third open end 4c of the fitting is adapted to communicate with the interior of a room in which the dryer is located or by suitable duct work to another room or several rooms the conventional clothes dryer normally has a built in air filter to remove lint and the like from the air vented from the dryer however to insure complete lint removal i prefer to install an additional air filter in connection with the fitting leg 4c if the leg 4c vents directly into a room a removable bag like filter 5 may be clamped around the opening of a leg 4c by means of an elastic band or endless coil spring 6 as seen in fig2 this bag like filter may be removed for cleaning as required located within the fitting 4 is a damper 7 which may be swung to various positions as shown in full and dot dash lines in fig2 to either close off air flow to the fitting leg 4c or.