The Electrolux EL500AZ is designed for use in rooms up to 405 sq. feet and features Plasmawave technology to further enhance its effectiveness. At a reasonable price, this unit receives great consumer reviews.
The Winix 9500 Ultimate Pet True HEPA Air Cleaner offers 5 filtration technologies along with a boatload of other convenient features at a great price. Not just for pet owners, this unit would be great for anyone.