So as my planet advances through the stages, the house starts to smell real nice. But I would like to be a little more discrete. There is a carbon filter on the grobo but the smell leaks from the sides of the box. Seems like something was missing. Like a fan on the outlet side that could pull the air through the filter instead of pushing it through with those 2 little fans on the back. So I went to the hardware store. Spent $60 and This is what i came up with. Bolted it with the 6 top existing screws with washers. The smell is gone. I bought a carbon canister that fits on top fan just in case. It’s Nice and fresh in the house finally. Not one smell. Lol I hope this helps someone with the same issue. It’s a little sloppy wish i could’ve done better. @groboengineers help us out. Lol I think we need another strong fan on the outlet side.