Air cleaner and shut-down method

Gas separation: apparatus – Electric field separation apparatus – With control means responsive to sensed condition

Reexamination Certificate

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Details

C096S021000, C096S022000, C096S026000, C096S063000

Reexamination Certificate

active

07857893

ABSTRACT:
An air cleaner is provided according to an embodiment of the invention. The air cleaner includes a high voltage power supply configured to provide a high voltage to a collector cell and a shut-down circuit coupled to the high voltage power supply. The shut-down circuit is configured to monitor an electrical current supplied to the collector cell, remove electrical power to the collector cell if the electrical current exceeds a predetermined cell current threshold for a predetermined time period, and generate an indication if the electrical power is removed from the collector cell.

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