It will reduce your fan power by MORE than 50%. Depending on your duct fan strength. (Computer fans will not have enough juice to power a scrubber)
Optimal carbon depth for maximum cleaning power effectiveness and minimal backpressure is 26 mm or 2.6 cm.
Oh, and Cecil_b has pointed out that air is better "sucked than blown"... Something to think about while designing your scrubber.
Ozone works great IF you can vent directly outside. If you have to vent into any kind of living area, dont even concider ozone. The levels of ozone neccesary to kill odor far exceed human safety limits. Believe me, I had lung problems fast after getting my ozone gen. I have since stopped using it, only occationaly when I'm NOT at home will i turn it on.
Carbon scrubbers are the way to go!!!
Oh, depending on how big your grow is you'll want 4.5 pounds to 9 pounds of the "Activated Carbon" look for "Pelletesized" its the best kind. I use "Kent Marine" brand with exellent success. Many others will work too... Bioutimus (sp) coal based charcoal is superior to coco fiber based charcoal... Just a little more food for thought.
Goodluck
Afterburner
