 So you want to make sure and get the biggest fan you can and then run a longer, a bigger insulated duct out there. Now you need to follow building code with that. But in my area, they want to have a flux duct that is fully insulated so you don't get condensation on the inside that goes out outside of the building. So you just get some flux duct, run it out, and then either run it out the roof or out a gable end. I'm not a fan of doing into soffits. I think there's a lot of problems that can happen there. Unless that's the only option you have,