Ear cleaning is beneficial to patients. Ear canal cleaning is mainly used when there is cerumen, foreign bodies, etc. in the ear canal, when the patient does not tolerate the forced ear canal suction treatment and does not cooperate, or when it is difficult to get it clean. The process of rinsing the ear canal with saline is often used to flush out cerumen or foreign bodies from the ear canal using the pressure of the water. It is often used clinically for ear canal cerumen rinsing, ear canal foreign bodies including ear canal flying insects, and some sand and so on can be treated with ear canal cleaning.