Anyone use 2 carbon filters in their setup?

I have a cabinet grow with an elf filter inside ducted to my fan outside on top of my cabinet. Originally I had a big long carbon filter about 18" long sitting in the corner of my cabinet. I decided to get a smaller filter so I could mount it up top in the cabinet and free up some space below. My ladies are smelling really beautiful unfortunately the wife doesn't think so. I still have my original filter and I was wondering if I could hook up the end to the exhaust ducting from the fan to my original carbon filter? So my setup would be a small carbon filter inside the cabinet with air being pulled from the fan outside on top and my other carbon filter connected to the exhaust ducting with the air being pushed thru. Will there be any problems with this setup? 200-400CFM Carbon Cannon 4" Carbon Scrubber
250CFM Cannon Fan Thanks for any help!

You can have a carbon on your intake and exhaust, people do it all the time.