I purchased the pure 3-1 air purifier from menards and have been using it for some time now and I am very satisfied with my purchase. Not only is it a smaller sized unit that doesn't take up much space but it is whisper quiet. It’s very impressive how quiet this unit is. I love that this unit also offers uv-c feature to help scrub the air of viruses and spores, I would recommend this unit to anyone anytime