Don't forget the basics -- you'll avoid a lot of headaches if you make sure
the place (cabinet or dryer) where you are drying the negatives is
I set up a temporary darkroom in Turkey where the dust was uncontrollable
(I swept out about a dustpans' worth a day -- from a 5 x 15' space) but I
had no trouble with my negatives since I dried them in a clean cabinet.