| 摘要 |
PROBLEM TO BE SOLVED: To efficiently remove particulate substance, an odor substance and germs in the air or remove them by photolysis with a simple structure, by housing a columnar straight tube UV-light source in a cylinder of a cylindrical honeycomb structure comprising a sheet in which a photoreactive semiconductor is carried on the surface of the sheet or inside the sheet. SOLUTION: An indoor unit 1 of an air conditioner has a hollow tightly closed structure, and comprises an air exhaust port 4 in the upper part, an air inlet 5 in the lower part, a blower fan 6, a heat exchanger 7, an exhaust fan 8, an air intake fan 9 and a dust removal filter 10. Polluted air introduced in the indoor unit 1 from the inside of a room is photo-decomposed and purified by a cylindrical honeycomb structure 3 mounted on a columnar straight tube UV-light source 2, and is blown into the room by the blower fan 6 from the exhaust port 4. The cylindrical honeycomb structure 3 made of a titanium oxide-coated sheet is mounted by being directly wound around the columnar straight tube UV lamp 2, and is arranged perpendicularly to the direction of flow of the polluted air.
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