lǜ​dú​tōng​fēng​zhuāng​zhì

filtration equipment

  1. to filter
    to strain or filter; to remove impurities by passing a liquid or gas through a device or material
  2. noun
    poison
    poison; toxin; harmful substance
  3. ventilation
    the circulation of fresh air through a room or area; airflow
  4. device
    installation; unit; device; equipment; a system or mechanism with a specific function