Product review (5 stars): I love this exhaust fan
I love this exhaust fan.  I installed it inside a cabinet over my cooktop.  Very easy to install.  It is vented through the top of cabinet, through ceiling, attic and out the roof.  It has three fan speeds.  It moves air very well.  With the lowest fan speed, I can hardly hear the fan.  The medium and high speeds produce a louder working noise.  In my opinion it isn't too loud, not at all.  What I really love about it, it is completely hidden, nobody knows it is there.