I'm new. First everything. I keep running into problems and when I have the solution another seems to pop up. Built my box from scratch. 3x2x4' that hangs out in my garage, which gets hot in the south. Lately I've Had high temp issues, which I supplemented with a AC window unit. Now that my temps a under control my humidity is really high. Before the AC unit it was in the 40% range, perfect. Now with the AC it's around 80%. I thought AC would bring the humidity down? Do I need to upgrade my exhaust now that the AC pulling more air in? I have 4 pc fans that did a good job before with just a inlet vent. I'm guessing they can't keep up now with the AC. It's not a emergency situation yet as I'm still in beginning veg. But I need to get it under control soon. Will a 4" inline fan with carbon filter fit my needs and help me? Thanks for the help.