Review Content so far so good, smooth and quiet Clean the air of your house easily and quietly. Quiet Air Purifier That Works! We just purchased this unit for our home, and have been using in both our main family room, but also the babys room. Quiet enough that it does not disturb sleep, but have found it to be powerful enough to clean the air considerably better than our previous model. Love the automatic shut-off feature, and the color change is neat too. Happy customer. Exellant Air Purifier a great product doing exactly what is being designed for!! cleans air istantly. easy controls, energy and enviromental friendly, better sleep at night! Ideal for people with allergies, carpets and pets at home, smokers.exeptional design and best value for money!