An air cleaner assembly for ionizing and filtering air is supported by an electrical receptacle mounted in a wall. A housing supports an enclosed filter and a fan forces air into the housing, wherein the air is filtered and ionized. The filtered and ionized air is forced out of the housing through a...http://www.google.es/patents/US5601636?utm_source=gb-gplus-sharePatente US5601636 - Wall mounted air cleaner assembly
