| 摘要 |
PROBLEM TO BE SOLVED: To provide a hot air heater capable of keeping humidity condition always comfortable by providing an abnormality alarming means for indicating abnormality when an abnormality occurs in a humidifier, removing a diffusing grill from a main body case for eliminating the abnormality in the humidifier, and automatically removing an indication of the abnormality when the diffusing grill is mounted again on the main body case. SOLUTION: The diffusing grill 4 can be removed from the main body case 11. When the grill 14 is mounted again on the case 11, a removing means 101 removes the indication of the abnormality.
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