I’m reconfiguring my printing closet (~6’x6’) for a new printer and thought about enclosing the printer in a moderate sized cabinet (~2’x3’x6’ - one “shelf” of the closet) for thermal control. Since there will be inevitable opening and closing, as well as just normal infiltration of the ambient air (usu ~65F between 40-75% RH) it would seem like a good application for a Peltier dehumidifier to keep the RH in the chamber low and reduce my need to re-dry filament which has been on the machine during (inevitable) multi-day or -week downtime between projects.
I put my filament on the heated bed, and put the box it came in over the top of it with the desiccant pack it came with. I set it for 38C and leave it. I feel a little more comfortable doing this with my printer as I built it with redundant thermistors on a silicone mat from alirubber, but you can do it on any machine.