Now that’s a thought; removing the carbon filter improved the airflow significantly? I’d be happy to remove the carbon filter in favor of venting to the outside via a hose. I’ll have to test that.
Addendum: Just tried it. Removing the carbon filter makes a huge difference in air flow. Makes sense, I just didn’t anticipate it being such a big difference. Keeping the filter door off also makes a big difference but I’m not sure if that’s too much and might cause cooling. I decided to keep the filter off, filter panel on, hooked back up the hose system to vent outside.