Diluted liquid medicine can't sterilize books. Drip disinfectant contains alcohol and cannot be used to disinfect books, otherwise it will damage books. Common disinfection methods of books include sun exposure, microwave disinfection, ozone disinfection and chemical disinfectant disinfection. It is recommended to disinfect books in the sun every day.

Drip disinfectant is an efficient disinfectant with p-chloro-m-xylenol as the main component. It is a colorless or brown liquid and is widely used in hotels, hospitals, restaurants and families. 1932, British bacteriologist Dr. Reynolds successfully developed a disinfectant for dripping dew, which was used in hospitals.