Patent ID: 8398923
Filing Date: 2013-03-19
Classification: A61L,B01D

Abstract:
1. A device for decontaminating air using a continual supply of free radicals, the device comprising a housing enclosing: (a) a non-thermal plasma filter producing free radicals by which contaminants in an air stream passing therethrough are neutralized; (b) an ultraviolet emitter downstream of the non-thermal plasma filter, the ultraviolet emitter breaking down ozone in an air stream output from the non-thermal plasma filter by subjecting the air stream output to ultraviolet radiation in the presence of a catalyst to increase free radical level; (c) a hydrocarbon emitter downstream of the ultraviolet emitter, the hydrocarbon emitter introducing a hydrocarbon having a carbon-carbon double bond into an air stream output from the ultraviolet emitter to preferentially react with residual ozone contained therein initiating a free radical cascade which continues outside of the device forming particulates in ambient air; and (d) a re-circulator re-circulating an air stream containing the particulates formed in the ambient air through the device, including through the non-thermal plasma filter, whereby the particulates increase efficiency of production of free radicals by the non-thermal plasma filter.