| 摘要 |
PROBLEM TO BE SOLVED: To securely remove odor components in the air and suppress increase in pressure loss of the air.SOLUTION: Odor components included in the outdoor air are detected by a detection sensor (16). When the odor components are detected, an opening/closing damper (19) is closed to achieve the use state of deodorization filters (17), so as to remove the odor components in the air by the deodorization filters (17). When the odor components are not detected, the opening/closing damper (19) is opened to achieve the unused state of the deodorization filters (17). |
