What are the differences between paper partition and aluminum partition HEPA air filters?

The main differences between paper partition and aluminum partition high-efficiency air filters are as follows:
Structural materials
Paper partition: Paper materials, usually specially made paper with certain strength and stiffness, are used as partitions. They are relatively light and cheaper.
Aluminum partition: The partition is made of aluminum material, usually aluminum alloy. Aluminum partitions have high strength and stability and can withstand considerable pressure.
Performance characteristics
Filtration efficiency: Both can meet the standards of high-efficiency air filtration and effectively filter out tiny particles in the air, such as dust particles of 0.3 microns or less. However, under the same filter material and structural design, the aluminum partition filter, due to its more stable structure, may better maintain the stability of its filtration efficiency during long-term use.
Resistance: The resistance of paper partition filters is relatively small because the paper partitions are relatively thin and light in weight, causing less obstruction to airflow. Due to the relatively thick aluminum material and the high density of aluminum alloy, the aluminum partition filter may cause slightly greater resistance to airflow, but it is generally within a reasonable range and will not have a significant impact on the overall ventilation effect.
Dust holding capacity: Aluminum partition filters usually have a larger dust holding capacity. This is because the aluminum partition has a solid structure, can support more filtering materials, and after holding more dust, its structure is not prone to deformation and can still maintain good filtering performance. The dust-holding capacity of paper partition filters is relatively small. When the dust-holding capacity reaches a certain level, the paper partitions may deform due to moisture or pressure, affecting the filtration effect.
Applicable environment
Paper partition boards: They are suitable for places with high requirements for air cleanliness but relatively mild usage environments, such as general electronic factories, laboratories, and clean wards in hospitals. The air humidity, temperature, and other conditions in these places are relatively stable and will not have a significant impact on the paper partitions.
Aluminum partitions: They are more suitable for use in some harsher environments, such as industrial production workshops, chemical workshops, outdoor air purification, etc. These places may have high humidity, corrosive gases, or significant changes in air pressure. Aluminum partition filters can better resist these adverse factors, ensuring the filtration effect and service life.
Service life
Paper partition: Under normal usage conditions, the service life of a paper partition filter is generally about 1 to 3 years, depending on the usage environment and air filtration requirements. If the usage environment is harsh, such as with a lot of dust or high humidity, its service life may be shortened.
Aluminum partition plate: Due to the good structural stability and corrosion resistance of aluminum partition plates, the service life of aluminum partition plate filters is usually long, generally reaching 3 to 5 years, and even longer under some well-maintained conditions.
Cost
Paper partition: The manufacturing cost of paper partition filters is relatively low, mainly because the price of paper materials is relatively low and the production process is relatively simple. Therefore, its initial investment cost is relatively low and it is suitable for use in some places with strict cost control.
Aluminum partition: Due to the use of aluminum materials and a relatively complex manufacturing process, the cost of aluminum partition filters is relatively high. However, its long service life and excellent performance make it highly cost-effective in the long run in some places with high requirements for air filtration and long operating hours.