diffuser filling

例句：

1. 1. The diffuser filling in theroom is causing a lot of noise.
   房间里的扩散器填充物正在产生很多噪音。
2. 2.The diffuser filling was designed toimprove airflow in the room.
   扩散器填充物的设计是为了改善房间内的气流。
3. 3. Thediffuser filling needs to be replacedregularly to maintain its effectiveness.
   扩散器填充物需要定期更换以保持其有效性。