new order

so just set my order in for Optimus 7-Inch 2-Speed Adjustable Clip-On Fan, Active Air 4 inch In-Line Fan 165 CFM, Acu Rite Indoor Humidity Monitor, LED wholesalers 4" Hydroponic Carbon Air Filter 200 CFM Air Scrubber Oder Control, Duct Fan Speed Adjuster, General Hydroponics Ph Control Kit old school kinda,
[h=4]got everything else i need to finish this already started grow. finally get to test my ph and for just winging it my plants seem to be doing fine, and now i can open space on my floor with this cliip on fan. still dont know if i am going to mount the fan inside with carbon filter on the outside or have it viseversa. any input would help,[/h][h=4][/h]

i would mount filter on outside. light tends to limit the carbon effectiveness.

i was thinking that, depending on how big the filter is i will def mount on the outside, am i going to get better suction with it inside or outside? either way i have a speed controller but i would like to make it where it still has negitive pressure but where it doesnt sound like a train in my room. i would like to try and get a good night sleep soon.