| http://www.w3.org/ns/prov#value | - n of airborne microbes and chemical toxinsUS6077334 *Jun 16, 1997Jun 20, 2000Joannou; Constantinos J.Externally ionizing air filterUS6136074 *Nov 12, 1999Oct 24, 2000Funai Electric Co., Ltd.Air conditioning apparatus with an air cleaning function and electric dust collector for use in the sameUS6315821Jan 11, 2001Nov 13, 2001Hamilton Beach/Proctor-Silex, Inc.Air filtration device including filter
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