Patent ID: 7435287
Filing Date: 2008-10-14
Classification: B03C

Abstract:
1. An electrostatic air cleaner comprising: an ionizing panel having at least one ionizing wire in connection with a voltage source, the ionizing panel being releasably received within the air cleaner in such a manner that an electrical connection is established between the at least one ionizing wire and the voltage source; a collector cell having one or more collector plates, the cell being separate from the ionizing wire panel and being releasably received within the air cleaner in such a manner that an electrical connection is established between the one or more collector plates and the voltage source to permit application of a voltage potential between the one or more collector plates and the at least one ionizing wires; a light source; a screen for covering the light source, said screen being translucent to permit at least a portion of the light emitted by the light source to pass through the screen, said screen including indicia thereon through which light does not pass, wherein the indicia indicates the air cleaner requires cleaning; and a controller for connecting the voltage source to the ionizing circuit to initiate operation of the electrostatic air cleaner, the controller having a microprocessor for monitoring the number of times or on-cycles that the electrostatic air cleaner is operated, where the controller predicts a need for cleaning the one or more air cleaner cells upon reaching a predetermined number of on-cycles, and responsively activates the light source to illuminate the screen such that the indicia is visible for alerting a user that the air cleaner needs servicing.