| 摘要 |
PROBLEM TO BE SOLVED: To prolong the lifetime of a deodorizing means in an air cleaning unit for removing an odor in a space. SOLUTION: The air cleaning unit comprises a first deodorizing means 6 and a second deodorizing means 7 of different deodorizing methods used simultaneously or alternatively. Thus, the decrease in the removing performance of a specific odor is suppressed by controlling the using time of the one deodorizing means, and the lifetime of the deodorizing performance is prolonged. |
