You're going to laugh, but I have my darkroom area in the basement right adjacent to the house furnace. I hang my film there, with three cats running freely around, and amazingly I don't really have dust problems. Most of the time my 35mm and 120 negs print needing maybe two or three spots checked with a spotting brush and that's it.
I don't know if I'm lucky or not, but I also think that it makes a difference how the film is prepared prior to hanging up to dry; I use the Sprint wetting agent, and an old windshield wiper to wipe off all excess moisture before hanging to dry (Sprint does recommend to remove excess prior to hanging up). Making sure I am using very gentle pressure, and with 35mm film I shake off all excess moisture I can before using the wiper blade so not to trap moisture in the sprocket holes (where residual wetting agent may build up when drying, causing problems once sleeved).
It works for me. No scratches, no dust, clean prints and scans with extremely low dust spotting needs, in spite of living in a climate with extremely low humidity in the winter.
For a while I did use an old clothes wardrobe, the kind you hang up on the rail and put clothes inside. I did this in fear of cat hair and dust, and it worked really well, but I got in a hurry one day and didn't have time for the extra step of putting the film in the wardrobe, so I just hung it up on a line from the rafters, and they came out perfect.
FWIW.