Hey Haze21 ,
How big is the core dia. of the filter = ducts size ? And what size is the outside dia. ? How many cfm is the duct fan your using ?

My scrubbers pretty big 24in long - 6 in. core -n- 8 in. O.D. and I run a 6in. 450 cfm blower . I still get a lil smell but I think I need a fan speed control on it to slow it down so carbon has time to do it's job .

It's always better to draw air through the filter than to blow through it too.

Peace
Crispi :jointsmile: