I have had this Blue Pure air purifier set up in my small bedroom for a few weeks now and my first impression was being super impressed by how quiet this runs at night. During the day I set it to the 2nd setting and if we are cooking, cleaning or it smells for some reason I do the highest setting to really clean the air. I like that this is small in size and has a really nice looking cover on it that also is washable and helps even more with the dust and hair.  I have to have this in my room all the time now, it helps so much with my allergies and all the sneezing caused by dust.