| 摘要 |
<p>Disclosed is an air cleaner (100) wherein an air inlet (2) is provided in a housing (1), and ambient air is introduced through the air inlet by the rotation of a built-in fan (52). The ambient air introduced from the air inlet passes through a filter (51) via a first passage. A sensor portion (10) is disposed at the outside of the first passage. The ambient air introduced through the air inlet and a passage tube (5) which defines a second passage different from the first passage through the sensor portion. Thus, the ambient air introduced through a passage different from the passage connected to the filter is detected by the sensor portion.</p> |
