Product review (2 stars): high noise factor of this unit
This is a review for the 36 inch ISL90A-LED stainless steel island mounted kitchen range hood.  The unit was ordered about a month ago and was installed yesterday. All of my Amazon purchases start with a rating of five stars. Then I analyze the positives and negatives to either keep the five stars or reduce them overall.
Lets start with the positives: a) this unit, once installed looks great. b) The lighting is very bright and more than sufficient. c) Structurally the unit seems very sound once properly installed because there is little to no movement during operation.
Now lets look at some negatives: 1) the directions are inadequate because theres not enough detail to put together the vertical struts for an 8-foot ceiling installation. 2) Also, there are no directions nor is there any allowance to install the power needed to plug the fan and light unit into an electrical circuit. 3) But most importantly the fan unit is very, very noisy during operation. It sounds like the electric motor running the fans or the fans themselves do not have any lubrication or bearings or whatever to help them to quietly turn. It literally sounds like metal rotating on metal. Therefore, we only run the fan at its lowest speed, which is in itself quite noisy, and needless to say does not exhaust to the degree that is required at times.  The noisy fan operation has me considering returning the entire unit - thats just how bad the noise is!
These deficiencies contribute to reducing the possible five-star rating to only two stars (and that's generous).  Knowing now the noise factor of this unit I cannot recommend for purchase by anyone. I will revise this rating should these circumstances change.
https://smile.amazon.com/gp/product/B004VUD41C/ref=cm_cr_ryp_prd_ttl_sol_0