| 摘要 |
PROBLEM TO BE SOLVED: To provide a device for informing filter exchange timing, which is capable of changing a previously set predetermined time in accordance with the user's need. SOLUTION: This device 1 for informing the filter exchange timing is a device for informing the exchange timing of a roll filter 6 of an air cleaner 11 and is provided with a filter exchange sign lamp 3 and a setting control part 5. The filter exchange sign lamp 3 informs that the operating time of the roll filter 6 reaches the predetermined time. The setting control part 5 is for correcting the previously set predetermined time to set a new predetermined time. |
