This is a very expensive unit and barely draws air. It does not remove the cooking smoke or oven smoke from my kitchen. It also is loud. I believed from what I read it had two powerful motors to draw away cooking smell and smoke and was quite. I had it professionally installed. 
Also it comes with a remote ( I thought was neat) but it is of very poor quality and you have to point it up in the air close to the unit to turn on and off.
The led lights are bright blue colour, in picture it looked like the natural colour led light, which I wanted. So my biggest problem is I’m stuck with it as it is built into the ceiling over my cooker!!!.