Dayton squirrel cage fans are top of the line as far as for the need you have.I've got 2 dayton 265 cfm,dayton 465, and 3 hydrofarm 265 cfm.You just need to do preventive maint. on them as time goes by.Little oil on the motor.They are very quiet.The hydrofarm,I have found to be the quietest! I would buy either one.You can get either 1 for less than 90.00 off of ebay.Good luck luck with all! Grow On!

Ga Grown!