This is a very nice air purifier. It comes with different fan speeds, including the eco-mode. If you put the fan on the highest speed it is a little loud and noisy. If you use the eco-mode it only runs the fan when it is needed. I like that feature. It uses the less electricity and keeps the fan a little more quiet. It has three light display settings. You can have full, low and off. I would recommend this product to anyone looking for a nice, high quality air purifier.