Its 85cfm from calculations I only need 2cfm. Its a micro grow in a safe.There's a great DIY for a filter in the DIY section. What is the CFM rating of the fan? Some 120's are 30CFM, some are 200 lol
What would you use to power those things?http://www.newegg.com/Product/Product.aspx?Item=N82E16835213001&cm_re=120mm_fan-_-35-213-001-_-Product
http://www.newegg.com/Product/ProductList.aspx?Submit=ENE&N=40000573+1373026503+1373126561&QksAutoSuggestion=&ShowDeactivatedMark=False&Configurator=&Subcategory=573&description=120mm+fan&Ntk=&CFG=&SpeTabStoreType=&srchInDesc=120mm+fan
Very easy. The power supply from old cordless phones is good. The output is written on them. You'd want 12V and the A at least the spec or over it. Like my 120mm is 12V .6A so the power supply has to be over .6A or it'll over-work it's self and fail sooner than later. I get mine from the Rescue Mission or Goodwill. I found a bunch in the garage from old electronics stored there.What would you use to power those things?