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Is there any kind of carbon filter that doesnt need a hole putting in the wall?

So, I now have a spair room (about 1m x 1.5m) in my house, so obviously its time to grow... I think I have the basics, but I just wanted to check it out before investing and setting up. The plan is to grow 2 plants on a desk under a 400W HPS light with a household fan to cool the air. Then...