Thanks HMR and Tiny for feedback.

I am going to put it at the end of the duct up in attic and see how it goes. If heat goes up then I will just have to get a second exhaust fan going.
scottcc5s Reviewed by scottcc5s on . Carbon filter and odor control questions Couple of questions about carbon filter and effectiveness for odor control and placement of the filter to my box fan. I bought a pretty good quality (I hope) carbon filter for odor control and reading the instructions it say place the filter as close to the fan outlet as possible. My questions are: 1) I have this fan hooked up to my 600 watt light and need the air to flow out of the room to keep my temp under control. If I hook up my carbon filter up to the end of the fan (pic with red Rating: 5