My new hydro setup....!!!

I picked up everything i had om my x-mas list and a few extras...got the hydrohut 52"x52"x7'foot tent....4x4 flood table ...40 gal. resevoir...Ecoplus carbonaire filter with 16 pounds of carbon...and a Can-filter 9000 with 12 lbs carbon...cool breeze reflector ....600 watt Galaxy digital ballast .....600 watt Eye Hortilux Super hps bulb....(2) S&P 140 cfm blowers and (1) S&P 312 cfm blower. The guy at the hydro store said i should have the big scrubber and a blower just scrubbing the air in the tent and circulating it in there ...and the second scrubber would be hooked up to the exhaust blower so the the pre scrubbed air would be scrubbed again when it is exhausted form the tent for zero odor...!!! Is this true ...he threw in the extra carbon filter and blower because i spent over a certain amount...also im ordering a Co2Boost.com for the flowering stage that i will also be using...Question will scrubbing the air and recirculating it within the tent take away from the level of Co2 i am going to be trying to increase ...i plan to run the exhaust blower only when I'm not using the Co2boot . I have some female White Widow seeds on the way ...!!!!