Air King High Performance Bath Fan

Comment: Bought the 90 cfm/2.5 sones unit to replace the builder's grade 50 cfm/4+ sones. The additional airflow was noticeable and the noise wasn't - just what I needed.

The frame is all plastic, which means no rust, though seeing how the bracket, motor, and motor mount is steel, I wouldn't place too much value on that aspect. The box is more rigid than the typical bent steel box, however, so there is value in that - no rattles.

Installation was a snap - literally. These units have a separate bracket that you screw into the joist, then snap the unit into place from below. It's much easier than the usual small-flange-at-the-edge mounting that other units use. Indeed, I spent less time installing this unit versus removing the old (working in a cramped attic space, nails to pry out, etc.) A plastic grommet and 3 wire nuts are included too - a nice touch.

The included materials note that ventilation fans have a 5 year warranty, not just a 1 year, so the manufacturer is confident that it'll last. I hope so too, as I intend to purchase more to replace the other noisemakers.