Fiberglass air filter paper has emerged as a critical component in modern air purification systems, offering exceptional performance across a wide range of industrial, commercial, and residential applications. Manufactured using advanced wet-forming technology, this product is engineered to provide high dust-hold capacity, low resistance, and superior mechanical strength. In this comprehensive article, we will explore the fiberglass filter paper’s technical specifications, applications, and the company behind its production, Hebei Fangyu Filters Material Technology Co., Ltd.. Additionally, we will reference authoritative sources, including the National Institute of Standards and Technology (NIST), to validate the importance of filtration standards in air quality management.
Product Overview and Key Features
Fiberglass air filter paper is produced from glass microfiber wool using a wet-forming method, which ensures a uniform distribution of fibers. This process results in a material with high dust-hold capacity, low air resistance, and exceptional tensile strength. The product is categorized into three main series based on filtration efficiency: ASHRAE, HEPA, and ULPA. Each series is designed to meet specific filtration requirements, ranging from general air conditioning systems to ultra-clean environments in semiconductor manufacturing.

The fiberglass filter paper is characterized by its ability to capture particles efficiently while maintaining low airflow resistance. This balance of performance and durability makes it an ideal choice for applications where air quality is paramount. The material’s high strength ensures it can withstand the mechanical stresses of continuous use, reducing the need for frequent replacements.
Technical Specifications and Performance Metrics
The technical data table below outlines the specifications of the fiberglass filter paper across different filtration series:
| Classification | Grade | Efficiency (%) | Basic Weight (g/m²) | Thickness (mm) @100kPa | Air Resistance (Pa) @5.3cm/s | Tensile Strength (N/m) | Stiffness (mg) MD | |
|---|---|---|---|---|---|---|---|---|
| MD | CD | |||||||
| ASHRAE | FY-F9 | 95 | 70 | 0.34 | 55±10 | 1200 | 1200 | 1200 |
| FY-F8 | 90 | 70 | 0.34 | 35±5 | 1200 | 1200 | 1200 | |
| FY-F7 | 80 | 70 | 0.34 | 33±5 | 1200 | 1200 | 1200 | |
| FY-F6 | 60 | 70 | 0.33 | 20±5 | 1200 | 1200 | 1200 | |
| HEPA | FY-H14 | 99.995 | 70 | 0.34 | 340±20 | 1200 | 1200 | 1000 |
| FY-H13 | 99.97 | 70 | 0.34 | 290±20 | 1200 | 1200 | 1000 | |
| FY-H12 | 99.8 | 70 | 0.34 | 250±20 | 1200 | 1200 | 1000 | |
| FY-H11 | 98 | 70 | 0.34 | 120±20 | 1200 | 1200 | 1000 | |
| FY-H10 | 94 | 70 | 0.34 | 80±15 | 1200 | 1200 | 1000 | |
| ULPA | FY-U17 | 99.9999 | 73 | 0.37 | 500±20 | 1200 | 1200 | 1000 |
| FY-U16 | 99.9999 | 73 | 0.37 | 440±20 | 1200 | 1200 | 1000 | |
| FY-U15 | 99.999 | 73 | 0.37 | 390±20 | 1200 | 1200 | 1000 | |
The data highlights the product’s ability to achieve varying levels of filtration efficiency, from the ASHRAE series (F6–F9) for general air conditioning systems to the ULPA series (U15–U17) for ultra-clean environments. The high efficiency of HEPA and ULPA filters ensures the removal of submicron particles, making them indispensable in industries such as pharmaceuticals, semiconductor manufacturing, and cleanroom applications.

Applications Across Industries
The versatility of fiberglass filter paper makes it suitable for a wide array of applications. In residential settings, it is used in air conditioners, vacuum cleaners, and air purifiers to improve indoor air quality. For commercial and industrial use, the material is employed in:
- Gas turbine air intake systems
- Paint spray booths
- Pharmaceutical processing facilities
- Microelectronic component manufacturing and assembly
- Photographic film production
- Nuclear air exhaust equipment
The ASHRAE series is ideal for general air conditioning systems and industrial air intake applications, while the HEPA series is designed for high-efficiency filtration in cleanrooms and critical environments. The ULPA series, with its ultra-high efficiency, is essential for semiconductor manufacturing and other industries requiring hepa filter paper for sale in ultra-clean environments.

Company Background: Hebei Fangyu Filters Material Technology Co., Ltd.
Hebei Fangyu Filters Material Technology Co., Ltd. is a leading manufacturer of high-performance filtration materials, including fiberglass filter paper and hepa filter paper manufacturers. With a focus on innovation and quality, the company has established itself as a trusted supplier in the global filtration industry. Their products are designed to meet international standards, including EN779/ISO16890, ensuring reliability and consistency in performance.
Hebei Fangyu’s commitment to excellence is reflected in its rigorous testing and quality control processes. The company’s fiberglass filter paper is produced using advanced wet-forming technology, which ensures uniform fiber distribution and optimal filtration efficiency. This dedication to quality has made their products a preferred choice for industries requiring high-performance air filtration solutions.
Importance of Filtration Standards and NIST Reference
The development and implementation of filtration standards play a crucial role in ensuring the effectiveness and safety of air purification systems. Organizations such as the National Institute of Standards and Technology (NIST) provide guidelines and reference materials that help manufacturers and users evaluate the performance of filtration products. For example, NIST’s work in metrology and measurement science ensures that filtration standards are based on accurate and reproducible data.
According to NIST, “Precise measurements are essential for the development of reliable filtration technologies that protect public health and the environment” (NIST Official Website). This emphasis on accuracy and standardization underscores the importance of using high-quality filtration materials like fiberglass filter paper in critical applications.
Conclusion
Fiberglass air filter paper represents a significant advancement in air filtration technology, offering a combination of high efficiency, durability, and versatility. Whether used in residential air purifiers, industrial cleanrooms, or nuclear facilities, the product’s performance is backed by rigorous technical specifications and industry standards. Hebei Fangyu Filters Material Technology Co., Ltd. continues to lead in the development of innovative filtration solutions, ensuring that their fiberglass filter paper meets the demanding requirements of modern applications.
As the demand for clean air and efficient filtration systems grows, the role of high-quality materials like fiberglass filter paper becomes increasingly vital. By adhering to strict standards and leveraging advanced manufacturing techniques, Hebei Fangyu is well-positioned to meet the evolving needs of the filtration industry.
References
National Institute of Standards and Technology (NIST) – Official Website. Retrieved from https://www.nist.gov.
Hebei Fangyu Filter Material Technology Co.,Ltd is the leading innovative developer and manufacturer all kinds of filter materials in China.pocket filter media factory Located in the economically developed Handan Hebei specialized in various kinds of filter materials from Synthetic Media,Paint stop Filter Media Pre- filter Non Woven Fabric ,Wire Mesh Backed Laminated Filter Media,Ceiling filter Auto Cabin Filter Media, polypropylene filter media, Glass Microfiber Filter Media Nonwoven Fabric,Pre- filter non woven fabric, activated carbon filter materials, EN779 bag filter materials, HEPA filter media, air filter HEPA filter media and Filter Accessories.Our filter materials have passed ISO9001:2000 quality certification since 2005.Certified by ISO9001, UL2 and SGS, with emphasis on quality and service. Our strength is the ability to find innovative ways to meet marketplace or product requirements.activated filter media price|super blog