Air purification system, method for purifying air inside a structure
AssigneeKoninklijke Philips Electronics N.V.
InventorsAlain Louis Claude Leroux, Jacques Maria Jozef Geboers
Life of this patent
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Abstract
An air purification system for a structure includes a first radiation source for generating UV-B and/or UV-C radiation and having an imaginary horizontal plane intersecting with the center of the first radiation source. The system further includes a first screen facing the first radiation source for preventing UV radiation generated by the first radiation source from radiating directly outward from the air purification system into a space below the imaginary horizontal plane. A second screen, facing the first radiation source as well as the first screen, is adjustable with respect to the first radiation source and is at least partially coated with a photo-catalytic material at a surface facing the first radiation source.
Claims13
An air purification system for a structure, comprising:
- a first radiation source for generating UV radiation and having an imaginary horizontal plane intersecting with a center of the first radiation source,
- a first screen facing the first radiation source for preventing the UV radiation generated by the first radiation source from radiating directly outward from the air purification system into a space below the imaginary horizontal-plane plane;
- a second screen facing the first radiation source and the first screen, and being at least partially coated with a photo-catalytic material at a surface facing the first radiation source, wherein the second screen is adjustable with respect to the first radiation source by moving the second screen towards or away from the imaginary horizontal plane such that the UV radiation reflects at least two times with a ceiling and/or at least one wall of the structure before being radiated towards the space below the imaginary horizontal plane.
A method for purifying air inside a structure using an air purification system having a radiation source for generating UV radiation and having an imaginary horizontal plane intersecting with a center of the radiation source, the method comprising the act of:
- providing the air purification system inside a structure;
- adjusting a distance between the air purification system and a ceiling of the structure in order to position the imaginary horizontal plane at eye level of a human being or, higher;
- adjusting the second screen with respect to the first radiation source in order to direct a UV beam of the UV radiation generated by the first radiation source towards a ceiling and/or at least one wall of the structure, and the UV beam having a angle α with the imaginary horizontal plane such that the UV beam reflects at least two times with the ceiling and/or the at least one wall before being radiated towards a space below the imaginary horizontal plane.
Dependencies are inferred from the claim text.