Any porous material that enables the working medium to pass through and intercepts solid particles or droplets to achieve separation or purification is called a filter medium.

As an equipment that must be used in many environments, air conditioning is very important for both production and life. In order to improve the air cleanliness of air intake and improve the efficiency of production and life, air conditioning filters are introduced into air conditioners, which are mainly divided into three kinds of air filters: primary effect, medium effect and high efficiency.

As one of the most important filtration and separation exhibitions in Asia today, the biennial Asian Filtration and Separation Industry Exhibition and China International Filtration and Separation Industry Exhibition is not only a platform for technology exchange and trade exchange, but also a wide-