I am thinking about getting this one, it pushes between 55-90 CFM depending on how hot it is. Is 40 dB(a) too loud?
Vantec Thermalflow 120mm Double Ball Bearing Fan TF12025 at TigerDirect.com
Dr.Hashman Reviewed by Dr.Hashman on . Duct fans I was wondering if anyone has used duct fans to power their exhaust. I am hoping to get one to put inbetween my growspace and my carbon filter. Does anyone have any tips or suggestions? Duct Diameter:.................... 4" Unit Weight:....................... 2.50 Lbs. Max Boosted CFM:............. 80 Free Air CFM:..................... 65 Amps:................................ 0.30 Housing Length:.................. 6" dBA:.................................. Rating: 5