An air purifier is mainly composed of a motor, a fan, an air filter, and other systems. Its working principle is that the motor and fan inside the machine circulate indoor air, and polluted air passes through the air filter inside the machine to remove or adsorb pollutants, continuously ionizing the air and producing a large number of negative ions, which are sent out by a micro fan to form a negative ion airflow, achieving the purpose of cleaning and purifying the air. With the improvement of people's living standards, there is a growing awareness of the importance of clean air for physical health. In order to improve the increasingly severe air environment, air purification products have become a popular product category in home appliance stores, among which air purifiers are favored by users as an effective tool for improving indoor air environment.