Fans and air circulation

[HoyoFan]

Just a simple advice question.

 

I’ve got a pretty solid and consistent reading in my humi-fridge: 65% bottom & 63% top. The temp doesn’t move from 69F.

 

My question is do I need to be circulating the air inside with a fan? I don’t open it too much in the winter so there’s not a lot of fresh air coming in other than through the drain hole.

 

Thanks!

[Thirds]

Since going on a silly spending spree, I had to throw together cooler storage quickly.  I watched videos and read many posts and I felt the fan, though not completely necessary, was a cheap value-add addition to circulate air in the cooler. 

It was something similar to this.  Just ran it out the cooler drain and plugged in to the wall.  

https://www.amazon.com/ELUTENG-Computer-Ventilator-Compatible-Playstaion/dp/B071Y4MGFK/ref=mp_s_a_1_5?keywords=usb+computer+fan+120mm&qid=1576208831&sprefix=usb+computer+fan&sr=8-5