Ac cooling fan 1)ac cooling fan with size 90*90*25 2)housing material: aluminum alloy 3)voltage: 220v 4)sleeve bearing (ball bearing available) 5)rated speed: 3, 100 ?0%rpm 6)air flow: 8.1/10.3cfm 7)static pressure: 1.7/2.8mmh2o 8)noise level: 27 or 28dba 9)motor: shaded pole induction motor 10)certifications: ce, tuv, ul and rohs Standard carton
