Our range hood rough-in is being installed and will be vented upwards from the top of our home. The hood that we are planning on getting is the 36 inch Kobe CH2236SQ. It is a stainless steel wall mount hood and the vent will go straight up to the ceiling. This hood is a monster in terms of power, but like a mouse in terms of sound.

It has 4 different operating levels:

At its “quiet” setting:
Operates at 380 CFM and 1.0 sones (equivalent to 40dB).

At its low setting:
Operates at 560 CFM and 3.0 sones (equivalent to 43 dB).

At its medium setting:
Operates at 720 CFM and 4.5 sones (equivalent to 49 dB).

At its high setting
Operates at 800 CFM and 4.8 sones (equivalent to 50 dB).

As a point of reference humans converse at 40 to 50 dB and on average we watch TV at around 60 dB.