Fiberglass air filter paper has emerged as a critical component in modern air purification systems, offering exceptional efficiency, durability, and adaptability across diverse industries. Manufactured from glass microfiber wool through a wet-forming method, this material is engineered to deliver well-distributed fibers, high dust-hold capacity, low resistance, and high tensile strength. Its versatility makes it an ideal choice for applications ranging from residential HVAC systems to advanced cleanroom environments. This article explores the technical specifications, applications, and industry relevance of fiberglass air filter paper, while highlighting the expertise of Hebei Fangyu Filters Material Technology Co., Ltd., a leading provider in this field.
Product Overview and Key Features
Fiberglass air filter paper is a high-performance filtration medium designed to capture airborne particles efficiently. The glass microfiber wool used in its production ensures a uniform fiber distribution, which enhances the material’s ability to trap contaminants without compromising airflow. This balance between dust-hold capacity and low resistance is crucial for maintaining energy efficiency in air filtration systems.
One of the standout features of this product is its customizable filter efficiency, which is categorized into three main series: ASHRAE, HEPA, and ULPA. Each series is tailored to meet specific filtration requirements, ensuring optimal performance in different environments. For instance, ASHRAE filters are ideal for general air conditioning systems, while HEPA and ULPA filters are employed in high-grade cleanrooms and critical industrial applications.

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Technical Specifications and Performance Metrics
The following table provides a comprehensive overview of the technical specifications for the fiberglass air filter paper across its ASHRAE, HEPA, and ULPA 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 | |
Applications Across Industries
The fiberglass air filter paper is designed to meet the demands of diverse industrial and commercial applications. Its high efficiency and low resistance make it suitable for:
- Home Air Conditioners: Providing clean air in residential HVAC systems.
- Room Air Purifiers: Enhancing indoor air quality by capturing fine particulates.
- Vacuum Exhaust Filters: Ensuring efficient dust collection in industrial vacuums.
- HEPA and ULPA Filters: Critical for cleanroom environments in microelectronics, pharmaceuticals, and biotechnology.
- Photographic Film Manufacturing: Maintaining particle-free conditions during sensitive processes.
- Paint Spray Booths: Preventing contamination in automotive and industrial painting.
- Nuclear Air Exhaust Equipment: Safeguarding against airborne contaminants in nuclear facilities.

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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 air filter paper. With a commitment to innovation and quality, the company provides customized filtration solutions to meet the evolving needs of industries worldwide. Their products are designed to comply with international standards, such as EN779/ISO16890, ensuring reliability and consistency in performance.
As a trusted supplier in the filtration industry, Hebei Fangyu has established itself as a key player in fiberglass filter paper and HEPA filter paper manufacturing. Their extensive product range and technical expertise make them a preferred choice for manufacturers and end-users seeking advanced air filtration solutions

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Industry Standards and Expertise
The efficiency and performance of fiberglass air filter paper are validated through rigorous testing against industry standards. For example, the ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers) standards define filter efficiency for general-purpose applications, while HEPA (High-Efficiency Particulate Air) and ULPA (Ultra-Low Penetration Air) filters meet stringent requirements for critical environments.
According to NIST (National Institute of Standards and Technology), precision in filtration standards is essential for ensuring air quality and protecting public health. NIST’s role in developing measurement standards for air filtration systems underscores the importance of reliable and accurate testing. For instance, NIST’s research on particulate matter and airflow dynamics provides a scientific foundation for filter performance evaluation [1].
Conclusion: A Reliable Solution for Modern Filtration Needs
Fiberglass air filter paper stands out as a versatile and high-performance solution for air purification across a wide range of applications. Its advanced material properties, customizable efficiency, and compliance with international standards make it a preferred choice for industries requiring superior air quality control. With Hebei Fangyu Filters Material Technology Co., Ltd. as a trusted supplier, users can rely on consistent quality and technical support to meet their filtration requirements.
For more information about fiberglass air filter paper or to explore HEPA filter paper for sale, visit the [product page](https://www.filtersmaterial.com/fiberglass-air-filter-paper.html) or contact Hebei Fangyu Filters Material Technology Co., Ltd. directly.
References
[1] National Institute of Standards and Technology (NIST). (n.d.). 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