Patent ID: 7763206
Filing Date: 2010-07-27
Classification: A61L,B01D

Abstract:
1. A method of decontaminating air using a continual supply of free radicals, the method comprising the steps of: (a) first, directing an air stream to be decontaminated through a device including a non-thermal plasma filter whereby free radicals are produced by which contaminants in the air stream are neutralized; (b) second, breaking down ozone in the air stream output from the non-thermal plasma filter by subjecting the air stream to ultra-violet radiation in the presence of a catalyst to increase free-radical level; (c) third, introducing a hydrocarbon having a carbon-carbon double bond into the air stream to preferentially react with residual ozone initiating a free radical cascade which continues outside of the device forming particulates in ambient air; and (d) fourth, re-circulating an air stream containing the particulates from the ambient air through the device including the non-thermal plasma filter wherein the particulates increase efficiency of production of free radicals.