expurgator

例句：

1. 3. disinfector例句：1. The expurgator is responsible for removing harmful bacteria from the water.
   净化器负责从水中去除有害细菌。
2. 2. The expurgator was used to remove toxic chemicals from the air.
   净化器被用来从空气中去除有毒化学物质。
3. 3. The expurgator is a crucial tool in maintaining cleanliness and hygiene in hospitals.
   净化器在医院保持清洁和卫生方面起着至关重要的作用。