Product review (1 stars): To explain this better there is a square stack that goes to the ...
I was extremely dissapointed in this hood.  I received it but wasn't ready to install it yet.  I finally got around to doing so and realized that it only has supports on one side of the stack that goes to the ceiling.  To explain this better there is a square stack that goes to the ceiling.  Since this is square there are 4 corners going up.  There were only metal support beams in two of the corners that conneted to eachother on the way up.  It seems to me that each corner should have a support beam so that the support sytem is a square just like the outer stainless steel.  I was immidiatly concerned that this could not possibly create a secure and stable installation.  I continued with the instalaltion and as I expected there was a lot of play in the hood.  It was able to rock a good 3 to 4 inches with very little pressure applied ot it.  When I turned it on the motor made a lot of noise including a loud clicking sound.  I then tried the lights which really didn't do anything to light up the cooking space below.  I returned this to Amazon on the basis of the obviously broken motor.  By the time I was able to uninstall this and pack it up it was past the 30 day return windows but Amazon was great and took the return anyway.

I went to my local Best Buy and purchased a hood from them.  It cost double the price but I got a much better hood.  The hood I purchased had supports on both sides of the stack.  I installed this and it was as sturdy as can be.  I could lean on it and it won't move at all. This is what I had expected.  I did some research and it seems Golden Vantage makes a wall mount hood that is identical.  My best guess is they took that hood and  put a ceiling mount bracket on the top.  Very very poor design.