The OPOLAR 8 Inch Metal Desk Fan is nice and quiet on low, a little louder on high which moves a lot of air. Plus it has a three-speed switch: Off, Low, High—perfect so that it does not need to be unplugged.
I actually run two of the smaller 5-inch OPolar fans aimed at my Comcast router and UPS and couple of laptop servers, for those hot days in my garage—they help significantly.
The OPOLAR 8 Inch Metal Desk Fan is useful for a nice cool breeze in a hot room when working on a computer. I also plan using it as portable fan for my Sprinter photography adventure van on the road when parked where no A/C is operating. It’s small and light enough to just hang off the wall or whatever.