filter box

例句：

1. 1. This filter box is designed to keep dust out of the air.
   这个过滤器盒设计用来防止灰尘进入空气。
2. 2.The engineers used a filter box to clean the air before testing the new machine.
   工程师们使用一个过滤器盒来清洁空气，然后测试新机器。
3. 3. The filter box was made of stainless steel and had a tight seal to prevent dust from entering.
   过滤器盒由不锈钢制成，具有紧密的密封，以防止灰尘进入。