Question about fans..

So I need to have an intake and exhaust fan & i'm curious where I can get a couple affordable ones that work well. Anyone have any suggestions?

one exhaust fan is enough, no need for intake fan just a hole for passive intake 2x the size of the exhaust fan. cfm should change the air 2-3x per minute

how big of an area u working with? if its small like 2x2x7 than 2x2=4 AND4X7= 21 SO IF U GET a fan that push 100 cfm u will change the air like 5 time a min. oh my the way get a filther and thank me later

zem said:

one exhaust fan is enough, no need for intake fan just a hole for passive intake 2x the size of the exhaust fan. cfm should change the air 2-3x per minute

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Not really the best information to give without getting some more specs first, some instances, negative pressure and passive works fine, other setups need other ventilation systems.

@BradyBoe - Can you give us some more info about the space and setup please.