twin 120mm fan holders with a nozzle, can be freestanding or hung. i made a nozzle for each fan which really does make a difference and you can feel a nice gentle breeze, much better than without them. I used a wood screw from the back holders that goes through the fan and screws into the backside of the shroud, you may need to drill pilot holes. use the mirror function in the slicer for both parts of the brackets.
The author marked this model as their own original creation.