4lomo is right, use the 70-120 on a prober can filter and ventilation
sumthing like this:
tho a 5" or maybe even as small as a 4" set could work depending on your temperatures and light etc.
if you only grow with CFLs or LED you might get away with a small 4" axial ventilation
cheap, but a carbon filter is a must IMO I grow 2-4 plant`s at the time in a apartment, fist time I also had two and no filter, believe me its wort the investment, they WILL ! stink once they flower, imagine, hopefully +4oz of fresh Bud`s plus leaf`s 24/7 in your apartment, my filter cleared it in less the two hours, so I could sleep in there agin, and did`t had to worry about neigbours !
you can buy active carbon in buckets online but the cost is about the same as a filter, once you have the filter you could maybe buy that next time to refill it, I believe you could fill a filter +5 times with a 10kg bucket of carbon depending on size of filter of course, filters last roughly a year of running (I don't run mine in Veg. fist add it when I begin to smell em) also high humidity is`t the best for the carbon, so will make it last less time if you have a high RH
some fish/pet shops sell carbon aswell and some hard wear stores have them replacement filters for cooker ventilations (much like the one in your link) but its not as effective as the kind used in the can filters or so I have been told/hear/read