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Photocatalytic air purifier

United States Patent Application

20040007453
A1
View the Complete Application at the US Patent & Trademark Office
National Renewable Energy Laboratory - Visit the NREL Technology Transfer Website
A photocatalytic air purifier (10) is provided which includes a tubular housing (1) having an inner and an outer wall, a central axis (A), a first end (2) having a centrally located air intake nozzle (4), a second end (5) having at least one air exhaust port (6), an air exhaust plenum (11) between the inner housing wall and a radial porosity medium (12), the porosity medium (12) extending radially and axially about the axis, and a housing central portion (13) defined by an interior perimeter of the radial porosity medium (12), the central housing enclosing an ultraviolet lamp (20) and a packing medium (30), the packing medium (30) extending radially and axially about the lamp (20) and comprising a plurality of spiral wound filaments (32) coated with a photocatalytic film.
Scahill, John (Evergreen, CO), Anselmo, Mark (Arvada, CO), Blake, Daniel M (Golden, CO), Wolfrum, Edward J (Lakewood, CO)
10/ 333,561
January 23, 2003
[0001] The United States Government has rights to this invention pursuant to Contract No. DE-AC36-99GO-10337 between the United States Department of Energy and the Midwest Research Institute.