A model like AF8000E Portable AC has 8000 BTU cooling capacity making it best for 300 sq ft areas and even for small spaces. Depending on top of the size for the room oodles of flab . to chill you obtain a Portable Air Conditioner. It removes a lot as 60 pints a day of moisture. Are you considering an 8000 BTU air strengthener? Any portable unit should vented perfectly.