For some reason I’m having a difficult time figuring out the right size fan and filter for a 4 by 4 tent.

I pretty much decided on a Hyper Fan and Phresh Filter . Which combo do I need for a 4 by 4 by 7 tent?

I’ve read it’s better to go bigger than you need then I read it isn’t.

Also what size size Hyper Fan and Phresh Filter do I need?

This setup will not be hooked up to a light.