Product review (2 stars): Noisy
The hood did not work when it was installed.  I called customer service to solve the problem and was even less impressed with their customer nonservice.  I was basically accused of not telling the truth as if I had done something to the hood as why it would not work.  I did not install the hood immediately as I am a 64 year old female and could not remove the hood from the box by myself so waited for installation by my HVAC man. When my HVAC man came out to install the hood it, approximately 30 days after it was delivered, the hood would not turn on. Therefore, the call to customer nonservice.  After begging and pleading with the nonservice rep, she agreed to send a new circuit board (which solved the problem.)
There are four levels for the fan.  Any level beyond 2 becomes noisy and 3 and 4 is extremely noisy - noisy so you can't speak without raising your voice.
I understand the hood is not made in America as indicated.  That is one of the reasons I purchased the hood - Made in America.  I would not recommend this hood to anyone.