| 摘要 |
PURPOSE:To provide a ventilation fan which enables the altering or setting of functions safely, easily and accurately to satisfy varied value added functions as demanded by consumers besides a base function of exhaustion with only one main body. CONSTITUTION:A cut 14 is so arranged that air in a room comes in contact with a louvre 11 provided in the main body 6 which contains a blade 2 for exhaust as driven with a motor 1. A card 12 which incorporates a sensor part for detecting changes in environment in a room and an operation control circuit is exhaugeably provided into the cut 14. |
