you want airflow.. but just enough to where you (yourself) can feel the air move... and nothing more than that.
Second tip for you.. NEVER ever.. point the fan directly at the buds. This will cause the buds to dry too quickly..
Also, you'll want to keep your humidity levels in check as well.
Most people think that temp is the most important variable. Well, they're wrong..
The most important thing to keep in check.. is the humidity level. I mean, sure.. the temp is just as important.. but the humidity levels are what you need to really be sure and keep in check.
good luck
peace.