Of course. It takes about 45 mins for film to dry around here. If that's too long for some, I see no reason not to add a little heat - but I don't think it should be a device that's considered necessary for every darkroom, or that one can't develop film without it. I've developed a lot of film in my time (50years worth) and I think I used one once...
Further, most of the devices I see have fans and I don't see how moving air around will result in less dust... unless there is a lot of filtering...
Lenny
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