Convenient and Refreshing Living Series Air Conditioner Cleaning & Antibacterial Set This set includes a cleaning spray to thoroughly wash the cooling fins inside your air conditioner, and an apatite-based antibacterial spray to coat the air outlet and filter, preventing mold and mildew. Cleaning manual included. This item has been stored in my parents' closet for a long time. It is new and unused, but there may be some dirt or scratches from storage. Please understand this before purchasing. #AirConditioner #Cleaning #FilterCleaning