Introduction to different high-efficiency filter paper materials, performance comparison of different filter paper materials and applicable scenarios

Introduction to high-efficiency filter paper materials

High-efficiency air filter (HEPA) technology is one of the most common air purification technologies currently, and is widely used in industries, household appliances, medical equipment, nuclear industry and other fields. The core technology of HEPA filters is the high-efficiency filter paper they use. These filter paper materials can effectively filter fine particles, PM2.5 and other pollutants in the air through special structure and performance design. Common high-efficiency filter paper materials include glass fiber, polypropylene (PP), polyester resin (PET), polytetrafluoroethylene (PTFE), etc. Each material has unique advantages in different application scenarios and can meet different filtering needs.

Performance comparison of different filter paper materials

Glass fiber filter paper
Glass fiber filter paper is one of the most traditional and widely used materials in high-efficiency air filters. It is made of glass fibers with a diameter of about 0.2~2.0 microns and has the following advantages:
High filtration efficiency: Glass fiber filter paper can effectively capture particles with a diameter of 0.3 microns and above, and its filtration efficiency can be as high as 99.99% or more. It is one of the most efficient filter papers on the market and is widely used in PM2.5 filtration.
High temperature resistance: Glass fiber filter paper has excellent high temperature resistance and can work stably at higher temperatures, so it is very suitable for air purification in high temperature environments.
Large dust holding capacity: Glass fiber filter paper has a large dust holding capacity and can carry a large amount of pollutants without affecting the filtration effect. It is suitable for equipment that runs for a long time.
Long-lasting stability: Glass fiber filter paper has good stability and a long service life, and can maintain long-term high-efficiency filtration performance.

Polypropylene (PP) filter paper
Polypropylene filter paper is a commonly used filter paper material in modern air purifiers, with the following advantages:
Excellent filtration efficiency: The filtration efficiency of polypropylene filter paper can reach H14 level (99.995%), which can effectively remove fine particles in the air and is suitable for environments with high air quality requirements.
Chemical corrosion resistance: Polypropylene material has good chemical stability and can resist corrosion from a variety of chemical substances. Therefore, it is suitable for chemical plants, laboratories and other occasions with special requirements for air quality.
Excellent thermal stability: Polypropylene filter paper has good thermal stability in high temperature environments, can work stably within a certain temperature range, and is suitable for industrial use.
High durability: Polypropylene filter paper has strong compressive strength and wear resistance, and can withstand large external pressure without deformation.

Polyester resin (PET) filter paper
Polyester resin (PET) filter paper usually has high hardness and good stiffness, and is suitable for some applications that require strong structural support. Its advantages include:
High hardness and stiffness: The hardness and stiffness of PET filter paper enable it to maintain a good shape during the filtration process, avoiding deformation of the filter due to external forces, and is suitable for occasions that require stable filtration performance.
Large dust holding capacity: Since PET filter paper has large pores and strong dust holding capacity, it can store more particles and is suitable for filtering large particles and dust.
Long service life: PET filter paper material is durable and stable, and can maintain high filtration performance during long-term use, reducing the frequency of replacement.
Good chemical stability: PET material has strong tolerance to acids, alkalis and other chemicals, and is suitable for use in some special environments.

Composite filter paper (PP-PET)
Composite filter paper is made of polypropylene (PP) and polyester resin (PET) through melt-blown technology, combining the advantages of both. Its advantages are as follows:
High-efficiency filtration and low resistance: Composite filter paper combines the high filtration efficiency of PP and the good hardness of PET. It can not only effectively filter tiny particles, but also work under low resistance, improve air circulation, and is suitable for long-term continuous use.
Low production cost: Compared with single material filter paper, composite filter paper has a lower production cost, so it is often used in large-scale production and application.
High filtration efficiency: Composite filter paper can achieve H13 level (99.95%) filtration effect, and is widely used in air purification in industrial, commercial and home environments.
Good mechanical strength: Composite filter paper combines the advantages of two materials, has strong mechanical strength, is not easy to break, and has a long service life.

Polytetrafluoroethylene (PTFE) filter paper
Polytetrafluoroethylene (PTFE) filter paper is known as the "King of Plastics". Due to its excellent physical and chemical properties, it has become one of the high-end materials in the field of high-efficiency air filtration. Its advantages include:
Extremely high filtration accuracy: The fiber diameter of PTFE filter paper is extremely fine, which can reach 1/10 of that of traditional glass fiber. It can capture smaller particles and the filtration efficiency can be as high as 99.99% or more, which is suitable for ultra-high efficiency air purification needs.
Low resistance and low energy consumption: The fiber of PTFE filter paper is fine, which can effectively reduce the air resistance during filtration. While ensuring high-efficiency filtration, it reduces energy consumption and improves the overall performance of the filter.
Excellent chemical resistance and temperature resistance: PTFE filter paper has very strong chemical corrosion resistance and high temperature resistance. It can still operate stably under high temperature and harsh environment. It is suitable for special fields with high requirements, such as semiconductor production, pharmaceutical industry, etc.
Extremely long service life: PTFE filter paper is extremely durable and can maintain high filtration performance in long-term use, reducing the frequency of replacement.

Applicable scenarios of different filter paper materials

Glass fiber filter paper
Due to its excellent filtration efficiency and large dust holding capacity, glass fiber filter paper is suitable for places with high demand for efficient air purification, such as nuclear industry, hospital operating rooms, clean rooms and high-end air purification equipment. It is particularly suitable for high-end air purification systems that require long-term stable operation.

Polypropylene (PP) filter paper
Polypropylene filter paper is suitable for air purifiers, industrial exhaust systems, automotive air filters, etc. Its high filtration efficiency and chemical resistance make it an indispensable part of industrial and commercial environments. Especially in urban environments with heavy air pollution, PP filter paper can effectively remove harmful particles and pollutants in the air.

Polyester resin (PET) filter paper
Polyester resin filter paper is suitable for office and home air purifiers as well as medium and low efficiency industrial applications. Its large dust holding capacity and strong durability make it perform well in air purification systems that need to run for a long time.

Composite filter paper (PP-PET)
Composite filter paper is widely used in industrial and commercial air purifiers, especially in places where high filtering effect is required, such as commercial buildings, factory workshops, commercial offices, etc. Due to its good filtering efficiency and low resistance, it is an ideal choice for large-scale applications.

Polytetrafluoroethylene (PTFE) filter paper
PTFE filter paper is suitable for high-end air purification needs, such as semiconductor manufacturing, pharmaceutical industry, food processing and other fields. Its high-efficiency filtration and high temperature and chemical corrosion resistance make it the preferred material for special industries.

Different types of high-efficiency filter paper materials have their own advantages in air purification technology and provide optimized solutions according to different application scenarios. With the development of technology, new filter paper materials that are more efficient, economical and environmentally friendly may appear in the future, further promoting innovation and progress in the air purification industry.

Customized HEPA filter to create efficient air purification solutions

Customized selection of HEPA filters is crucial to improving air filtration efficiency. Different materials, structures and filtration levels are suitable for different application scenarios, from industrial production to medical environments, to home and commercial air purification. Choosing the right customized solution will help optimize air management and create a cleaner and healthier environment.