ok my grow box is in a spare room. i want my scrubber outside my box but still in my room then my intake will be from my central air and it is 6'' so i want the top one 6'' with the fan outside my box with ducting running to my scrubber hanging outside my box pulling the air out??? is that right? and also how much smell does your scrubber remove?? also i could make a T and use my exhaust fan to run another duct pulling the heat from my hood. would that work?