Fiberglass air filter paper has become a cornerstone in modern air purification systems, offering exceptional performance across a wide range of applications. Manufactured by Hebei Fangyu Filters Material Technology Co., Ltd., this product combines advanced materials science with rigorous testing standards to deliver superior filtration efficiency. This article explores the technical specifications, applications, and industry-leading advantages of fiberglass air filter paper, supported by authoritative references from the National Institute of Standards and Technology (NIST).
Product Overview
Fiberglass air filter paper is crafted from glass microfiber wool using a wet-forming process. This method ensures uniform fiber distribution, resulting in high dust-hold capacity, low air resistance, and exceptional structural integrity. The product is categorized into three main series based on filtration efficiency: ASHRAE, HEPA, and ULPA. Each series is designed to meet specific industrial and commercial requirements, from basic air conditioning systems to ultra-clean environments in semiconductor manufacturing.

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Key Features and Advantages
The unique properties of fiberglass air filter paper make it an ideal choice for diverse applications:
- High Dust-Hold Capacity: The uniform fiber structure allows the material to capture and retain large quantities of particulate matter without significant pressure drop.
- Low Air Resistance: Optimized fiber arrangement minimizes airflow resistance, ensuring energy-efficient operation in HVAC systems.
- Excellent Mechanical Strength: The material maintains structural integrity under high-pressure conditions, making it suitable for demanding environments.
- Wide Range of Efficiency Grades: Available in ASHRAE F6-F9, HEPA H10-H14, and ULPA U15-U17 series, catering to different filtration needs.

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Technical Specifications
The following table provides detailed technical data for the fiberglass air filter paper across different efficiency grades:
| 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 | |

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Applications in Diverse Industries
Fiberglass air filter paper is utilized in a broad spectrum of applications, including:
- Residential and Commercial HVAC Systems: ASHRAE series filters (F6-F9) are ideal for standard air conditioning systems, gas turbine air intakes, and compressors.
- High-Precision Environments: HEPA filters (H10-H14) are used in cleanrooms with 10,000 to 100,000-grade cleanliness, as well as in nuclear exhaust systems and high-end vacuum cleaners.
- Ultra-Clean Manufacturing: ULPA filters (U15-U17) are critical in semiconductor fabrication facilities and Class 10 or 1-grade cleanrooms.
- Industrial Processes: Applications include photographic film manufacturing, microelectronic component assembly, paint spray booths, and pharmaceutical processing.
Company Background: Hebei Fangyu Filters Material Technology Co., Ltd.
As a leading manufacturer in the filtration industry, Hebei Fangyu Filters Material Technology Co., Ltd. specializes in producing high-quality air filter materials. The company adheres to international standards such as NIST-recognized testing protocols (e.g., ANSI/ASHRAE 52.2) to ensure product reliability. With a focus on innovation and sustainability, Fangyu provides tailored solutions for clients across various sectors, from consumer electronics to pharmaceuticals.
Industry Standards and Compliance
The performance of fiberglass air filter paper is validated through rigorous testing procedures. According to NIST, filtration efficiency standards like ANSI/ASHRAE 52.2 are critical for evaluating air filter performance. Fangyu’s products meet or exceed these benchmarks, ensuring compliance with global regulations for air quality and safety.
Conclusion
Fiberglass air filter paper represents a significant advancement in filtration technology, offering unmatched efficiency and versatility. Whether for residential use or industrial applications, Hebei Fangyu Filters Material Technology Co., Ltd. continues to set benchmarks in the industry. For more information on product specifications or customization options, visit the fiberglass air filter paper page.
References
National Institute of Standards and Technology (NIST). (n.d.). ANSI/ASHRAE 52.2: Method of Testing for Rating Air Cleaners. 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