For sometime now, I've been using an inexpensive suit carrying bag as a film drying cabinet.
The bottom panel is cut to fit a card and fiberglass type air filter like used in AC's and in Central Heating and Air intakes, mounted inside the unit.
A small fan/heater set on low heat sits underneath the ceiling mounted cloths bag, on the outside, and a second filter, mounted into and inside the top of the bag keeps dust out or collected from whatever floaters make it up that far, by the convection of heated air.
The cloths hangers rack is supported by additional support lines that allow more lines of film/sheet film to be hung.
Velcro straps allows me to raise up the bottom and middle up to the top of the unit for in place storage and keeps it from hanging down and taking up space when no one use.
It's an easy-peasy, low cost set up that can travel, if needed and only occupies a bit of celling space
until wanted.
If I wanted, I could also prep the hanging space by using my small travel steamer to run steam up from bellows outside the bag, into the filtered drying space, like clearing dust out of the air in a shower, before hanging negatives.
It's simple, low cost and does a good job when used.
Cheers to all and Godspeed,
Eli