| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a water purifier which allows a user to easily determine whether a connection state between a casing and a cartridge is adequate or not.SOLUTION: The water purifier purifies a liquid to be treated, and comprises: a cartridge having a filter body therein; a casing to which the cartridge is connected; and further movement sensory means for detecting the movement of the cartridge with respect to the casing.</p> |
