air cleaner

例句：

1. 1.The air cleaner in the room is very effective at removing dust.
   房间里的空气净化器非常有效地去除灰尘。
2. 2. We need to use air cleaners regularly to keep our homes clean.
   我们需要定期使用空气净化器来保持我们的家干净。
3. 3.The air cleaner has a low noise level and is easy to operate.
   这个空气净化器噪音很低，操作简单。