Razza- you want to look at CFM ( cubic feet of air per minute) not RPM ( fan revolutions per minute).

Look at the CAN Max-fans.
rhizome Reviewed by rhizome on . Confused about heat problem... Here is my situation: I am pulling cool air from under the house through the air cooled hoods... I am running 3600 watts in my grow room. Pulling air through the hoods with a six inch Vortex fan. The model number on it is VTX600. I looked it up on the net and it says it pulls 2600 RPM. Now, I am venting the room with a cheaper fan I bought at Home Depot.. but it has 3000 RPM. From what I understand you want to use the fan with more RPM to vent the room, and the lesser fan to air cool Rating: 5