Patent ID: 6797044
Filing Date: 2004-09-28
Classification: B01D

Abstract:
An air filter device for installation on an exhaust device comprising:A sponge filter being impregnated with a light sensitive catalyst and having at least one ultraviolet light-emitting diode, said sponge filter being disposed at an air passageway of said exhaust device, a fixing insertion slot being formed outside said air passageway of said exhaust device so that said sponge filter can be installed therein, said at least one ultraviolet light-emitting diode being disposed on said exhaust device and being positioned at one side of said sponge filter, said at least one ultraviolet light-emitting diode irradiating air in said air passageway and said sponge filter with ultraviolet light, said ultraviolet light and said light sensitive catalyst eliminating bacteria in said air and in said sponge filter.