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Abt Electronics has the Sharp HEPA Air Purifier (model FP-P35CX) for $158. Designed for rooms of up to 129 square feet in area, can capture particles as small as 0.3 microns, and features a HEPA filter, washable pre-filter, and three filtration modes. Shipping is free with no tax (except IL, IN, WI, MI). Compare this price to $200 at Home Everything