Vox Humana > wrote:
>The 300 CFM fan in my microwave hood is very loud while the 600
>CFM fan in my downdraft range is really quiet. Sometimes I can't
>tell if it running.

I'm pretty sure our downdraft has dual fans -- one inside the unit,
and one mounted outside the house at the exhaust. Either that, or
I have really noisy filters... we're going to install a "real" hood
in our new house.

Donald