Based on different functions and structures, box filters can be categorized into various types such as medium-efficiency box filters, V-shaped high-airflow box filters, and high-temperature box filters, which are widely used in air filtration, liquid filtration, and other fields.

Air filtration applications:

Central air conditioning and centralized ventilation systems: Medium-efficiency box filters are suitable for central air conditioning and centralized ventilation systems. They can serve as pre-filters for high-efficiency filters, removing dust, particulate matter, and other contaminants from the air, thereby improving air quality and ensuring the normal operation of the system.

Industries such as electronics and precision instruments: Industries like electronics, precision machinery, and instrumentation have high requirements for air quality. Box filters can filter out tiny particles in the air, preventing them from affecting precision equipment and products, and creating a clean production environment.

Food industry: In the food production process, box filters can be used for air filtration in workshops to prevent dust, microorganisms, and other contaminants from polluting food, ensuring food safety.

Chemical industry: Box filters utilizing activated carbon non-woven filter materials can be applied in the chemical industry to remove odors and harmful gases from the air, thereby purifying the workshop air environment.

Special Locations such as Hospital Operating Rooms: W-type sub-high efficiency box filters are commonly used in places like hospital operating rooms and pharmaceutical factories, where the air quality requirements are extremely high. They can effectively filter bacteria, dust, and other particles from the air, creating a sterile and clean environment.

Liquid filtration applications: In some industrial liquid filtration scenarios, box filters can be used to filter liquids such as paint and ink, removing particulate impurities and ensuring liquid quality. For example, in the automotive painting process, paint can be filtered to prevent impurities from clogging the spray head and affecting the painting effect.

High-temperature gas filtration applications: High-temperature box filters can be used for high-temperature gas purification. In the energy and power sector, they can be employed for dust pre-filtration before desulfurization and denitrification in the flue gas treatment system of coal-fired boilers in thermal power plants. In the metallurgical industry, they are utilized for blast furnace gas purification during steel smelting and for waste gas treatment in heat treatment furnaces during steel rolling processes. In the chemical industry, they are used for gas purification in high-temperature reaction stages such as ethylene cracking furnaces and catalytic reforming units. In the field of environmental protection and governance, they are employed in dioxin filtration systems in waste incineration power plants and high-temperature flue gas purification devices for hazardous waste treatment.

Regarding news related to box filters, it has been reported that the high-temperature box filter market in China is expected to experience structural growth from 2025 to 2030, with the market size projected to climb from approximately 7.8 billion yuan in 2025 to over 13.5 billion yuan in 2030.