Here's how I'm drying, I have an old dresser, I gutted it out leaving only the drawer lids, which I attached using some finish nails. I left one removable for access to my herb.
On the bottom of the dresser I installed a 6 inch fan that I rigged up to pull in air. For exhaust I'm using a passive system, its just vent holes with some carbon filter sheets.
Also inside I rigged up a hygrometer/thermometer inside the dresser.
Also the whole reason I'm doing this, is because our house has extremely low rh and I don't to dry my buds too fast.
(20% rh) I want to achieve atleast 55