Stealth Cab (3X2X2) & odor control ?

It doesnt seem reasonable to try cramming in an inline rated at 150+ cfm due to size alone. PC fans are recommended for small cabs but in all my lurking I haven't seen anyone combining these with Carbon. What are your recommendations for such a small grow space? Are there any examples available where a PC fan and Scrubber have been combined?

I considered maybe a carbon pad insert for a deep fryer to be secured either in front or behind the PC fan. Pros Cons? Would that even work? (1-2 plants) How much would this lower the cfm's in your experiences?

Maybe a small inline fan blowing out threw a sack of moth balls, it is an old school trick, also, you can put some dryer sheets in the sack as well.
Adieu