| 摘要 |
PROBLEM TO BE SOLVED: To emit an odor component under the adsorbent regeneration of a filter 7 without polluting the inside of a cabin 9. SOLUTION: A sun roof 2 is provided with a light transmission part 2a, and the filter 7 with a photocatalyst added to the adsorbent is arranged to receive sunlight through the light transmission part 2a. When the air temperature in a cabin 9 detected by a temperature sensor 40 during parking is a specified value or higher, an opening/closing mechanism 50 is operated to open the sun roof 2, and a blower fan 5 is operated to ventilate the inside of the cabin 9. With the sunlight shining upon the filter 7 in the daytime, the odor component is desorbed and decomposed, and under the scorching sun with the strong irradiation of the sunlight that makes the regeneration of the filter 7 active, heat in the cabin 9 is automatically released to the outside of a vehicle from the sun roof 9 as ventilation during parking, which suppresses temperature rise in the cabin 9 during parking. The odor component desorbed by the sunlight and heat is thereby released together to the outside of the vehicle, so that the filter is regenerated without polluting the inside of the cabin 9.
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