Fan!?

I am currently drying some buds in a cardboard box. I've heard from multiple people that you need to keep a fan blowing. Is it really necessary? I thought that all the fan does is dry the buds faster. Any info would be great. Thanks.

the fan gives the bud fresh air to work with, lowers mold %, and yeah.


all in all, if you're gonna dry your buds in a box keep it in a room w/ a small oscilating fan if you can

Should i have it inside the box? Blowing up towards the buds?