fan help

hi all
i am currently usng the following fan set up Ruck 5 in Fan/Filter Combo (inc. ducting): Basement Lighting Hydroponics and Plant Grow Lights i have the carbon filter fixed in the room and the ducting exiting threw the celing to the roof sofet vent system - and to day i fitted my growlux 600 watt buld to reflector but room is getting to hot so my qestion is this as the stail smelly air is getting sucked threw the carbon filter then the centrifugal and exited threw the duckting would i be able to set it up so that the air that passed the filter is pumted back into grow tent to try and aid cooling room to 28 instead of 30-32 as it's getting arrr
Cheers for ya coment s and advice

hey, i just bumped mione to a 600 hortilux on a wing. i just put this 50 dollar fan in . its got 1250 cfm on low 1400 on M 15 on high. its a stanly floor squirrl blower type fan. i'll get a picture of my set up if you want. my stuff looks great.Last grow was a disaster (see my picts) this one is great though. i thought the jocks were nute deficiant b/c they are veiney, but when i look online all have white veins in them. i will show hyou, maybe you know

Ace
I got this bolted to aluminum tobe. i put self tapping screws through a "collar.3http://http://www.acehardware.com/product/index.jsp?productId=1747223&cp=&pg=2&sr=1&origkw=blower&kw=blower&parentPage=search&searchId=28658792533

yes m8 i'd love to she ya setup spot on you can veiw mine at https://www.rollitup.org/toke-n-talk/78726-my-first-grow-attempt-thread.html
That link you posted m8 dont work .. i also have a swivel fan 11" going side to side but so much heat from 600 watt growlux lamp and reflector http://http://www.basementlighting.com/Merchant2/merchant.mv?page=1/PROD/GLDGL6 -_-