Carbon air filter odor scrubber

[Peacock]

Hi, I'm planning on using an Suncourt in-line duct fan in a room 8x8x6 (door closed), and with the door open 16x8x7. It is a 5" in-line duct fan and will produce 225 cfm's. I will place it in a wall with a wall switch and a timer.
I'm looking for a drawing that will help me construct the filter scrubber.
Questions like which side should the carbon be on? How much carbon do I use? How long should the fan be on? The fan will be just below the ceiling, and I will have a hole on the bottom to let fresh air in. Should I have another fan on the bottom? I already have a fan going in the both rooms.

Grow and help the world grow

[Weed420]

Here's some basic pictures of the one I built. Its working great no smell and a flower room the same size as yours. I have mine sitting in the outer room where I use a 6 inch fan to pump all the air out of the flower room into the outer room. Then I have a 6 inch connected to scrubber, sit it on the floor and just allow it to recycle the air in the outer room to clean the air.
DIY Carbon Scrubber