In today’s world, air quality is a critical concern across industries, from healthcare to manufacturing. Fiberglass air filter paper has emerged as a reliable solution, offering exceptional efficiency in capturing airborne particles. This article delves into the technical specifications, applications, and industry relevance of this advanced filtration material, while also highlighting the expertise of its manufacturer, Hebei Fangyu Filters Material Technology Co., Ltd..
Product Overview: Glass Microfiber Air Filter Media
Fiberglass air filter paper is crafted from glass microfiber wool, produced through a wet-forming method. This process ensures a uniform distribution of fibers, resulting in a material with high dust-hold capacity, low resistance, and exceptional strength. These properties make it an ideal choice for air filtration systems in diverse environments.
The product is categorized into three main series based on filter efficiency: ASHRAE, HEPA, and ULPA. Each series is tailored to meet specific filtration requirements, from general air conditioning systems to ultra-clean environments in semiconductor manufacturing.

High-performance fiberglass filter media designed for industrial and commercial applications.
Technical Specifications: Precision Engineering for Optimal Performance
The following table outlines the detailed technical specifications of fiberglass air filter paper, categorized by filter class and grade:
| Classification | Grade | Efficiency (%) | Basic Weight (g/m²) | Thickness (mm) @100kPa | Air Resistance (Pa) @5.3cm/s | Tensile Strength (N/m) MD | Stiffness (mg) MD |
|---|---|---|---|---|---|---|---|
| ASHRAE | FY-F9 | 95 | 70 | 0.34 | 55±10 | 1200 | 1200 |
| FY-F8 | 90 | 70 | 0.34 | 35±5 | 1200 | 1200 | |
| FY-F7 | 80 | 70 | 0.34 | 33±5 | 1200 | 1200 | |
| FY-F6 | 60 | 70 | 0.33 | 20±5 | 1200 | 1200 | |
| HEPA | FY-H14 | 99.995 | 70 | 0.34 | 340±20 | 1200 | 1000 |
| FY-H13 | 99.97 | 70 | 0.34 | 290±20 | 1200 | 1000 | |
| FY-H12 | 99.8 | 70 | 0.34 | 250±20 | 1200 | 1000 | |
| FY-H11 | 98 | 70 | 0.34 | 120±20 | 1200 | 1000 | |
| FY-H10 | 94 | 70 | 0.34 | 80±15 | 1200 | 1000 | |
| ULPA | FY-U17 | 99.9999 | 73 | 0.37 | 500±20 | 1200 | 1000 |
| FY-U16 | 99.9999 | 73 | 0.37 | 440±20 | 1200 | 1000 | |
| FY-U15 | 99.999 | 73 | 0.37 | 390±20 | 1200 | 1000 |
The data underscores the product’s adaptability to varying filtration needs. For instance, HEPA filters (e.g., FY-H14) achieve 99.995% efficiency, making them suitable for high-grade cleanrooms in pharmaceutical and semiconductor industries. ULPA filters (e.g., FY-U17) offer 99.9999% efficiency, catering to ultra-clean environments like chip manufacturing.

Advanced fiberglass filter paper engineered for precision and durability.
Applications: Versatile Solutions for Diverse Industries
Fiberglass air filter paper is widely used across multiple sectors, including:
- Home and Commercial HVAC Systems: ASHRAE-rated filters (F6–F9) ensure efficient air circulation in residential and industrial air conditioners.
- High-Purity Environments: HEPA filters (H10–H14) are critical in pharmaceutical processing and microelectronic component manufacturing.
- Ultra-Clean Facilities: ULPA filters (U15–U17) meet the stringent requirements of semiconductor fabrication and nuclear reactor cooling systems.
The material’s low air resistance and high dust-hold capacity make it ideal for applications requiring prolonged filter life without compromising airflow. For example, HEPA filters are used in high-end vacuum cleaners and air purifiers, while ULPA filters are essential in cleanroom environments for semiconductor production.

High-efficiency HEPA filter paper for critical industrial applications.
Company Background: Hebei Fangyu Filters Material Technology Co., Ltd.
Hebei Fangyu Filters Material Technology Co., Ltd. is a leading manufacturer of advanced filtration materials, specializing in fiberglass air filter paper and HEPA filter paper. With a commitment to quality and innovation, the company adheres to international standards such as EN779 and ISO16890, ensuring its products meet rigorous performance criteria.
Hebei Fangyu’s expertise in glass microfiber technology enables the production of filters that balance efficiency, durability, and cost-effectiveness. Their fiberglass filter paper is trusted by industries worldwide for its ability to maintain air purity in demanding environments.
Industry Standards and NIST Validation
The performance of fiberglass air filter paper is validated through adherence to EN779 and ISO16890 standards, which are recognized by NIST (National Institute of Standards and Technology) as benchmarks for air filtration efficiency. These standards ensure that filters meet specific requirements for particle capture, airflow resistance, and longevity.
According to NIST, “Standards like EN779 and ISO16890 provide a framework for evaluating filter performance, ensuring consistency and reliability across industries.” This alignment with NIST-endorsed standards underscores the trustworthiness of Hebei Fangyu’s products.
Reference: NIST (National Institute of Standards and Technology)
Conclusion: Choosing the Right Filtration Solution
Fiberglass air filter paper is a versatile and high-performance solution for air filtration needs. Whether you require basic air conditioning filters or ultra-efficient HEPA/ULPA filters, Hebei Fangyu’s products deliver precision, durability, and compliance with global standards.
For more information on fiberglass filter paper or to explore HEPA filter paper manufacturers, visit Hebei Fangyu Filters Material Technology Co., Ltd..
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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