Blackrock there is no window in the loft. I have 3 options: send the exhaust into open room which is open to house, send it to a bathroom, or into a closet which leads to the attic. I wouldnt mind buying a good carbon scrubber just not sure which one works excellent as ive never used them. Im thinking about buying a 256cfm squirrel cage fan to pull air out threw the filter. I hope its not going to be to loud but if so i guess I can deal with it.