dust mask

例句：

1. 1. The engineer wore a dust mask while working in the factory.
   工程师在工厂工作时戴着防尘面具。
2. 2. The scientist used a dust mask to protect his eyes from the fumes.
   科学家用防尘面具保护他的眼免受烟雾的影响。
3. 3. The firefighters put on their dust masks and rushed into the burning building.
   消防员戴上防尘面具冲进着火的大楼。