Product review (2 stars): No way this is more than around 200 cfm
I thought the description was too good to be true, and I was right. Shame on me. Mounting was straightforward and easy, and it is fairly heavy gauge stainless, but I have to remove the filters to get it to pull anything closely resembling enough air to get the most basic ventilation, and I have it vented directly outside through the wall at the top of the hood, with only one elbow.. Save your money and don't buy this piece of junk.