| 摘要 |
The utility model provides a filtering device capable of performing stable blockage detection on a filter and an air adjusting device. The filtering device of an air adjusting device such as an air purifier detects blockage by use of a light emitting part (31) and a light receiving part (32) which are opposite to each other and are separated by a filter (21) that the airflow passes through. The light emitting part (31) and the light receiving part (32) are arranged at a position where a light path (34) from the light emitting part (31) to the light receiving part (32) inclines relative to the plane of the filter (21) and the light path (34) is intersected with the airflow-through direction (51). Apart from the orthogonal mode between the airflow and the filter (21), the light emitting part (31) and the light receiving part (32) are arranged at a position where the light path (34) is intersected with a plane comprising the direction orthogonal with the plane of the filter (21) and the airflow-through direction (51). The device provided by the utility model can prevent the dust from stacking at the part where the light path (34) of the filter (21) passes through. |
