After i read, that the fan from the advanced filtration system is quite than the 2 chamberlains, i bought the AFS. but since my space is very limited the system is too thick for me. Since i mostly print petg and pla i made an adapter so i only have the fan with an exhaust to the side.
Works like a charm for me and reduced the noise a lot.
you will need two , longer 5mm screws and 4 longer 3mm screws. (I put some soft, 1mm thick, self adhesive strip for better sealing between printer and fan housing.)
The author marked this model as their own original creation.