Introduction to Fiberglass Air Filter Paper
Produced using a wet-forming method, fiberglass air filter paper is composed of glass microfiber wool. This advanced material is engineered to deliver exceptional dust-hold capacity, low air resistance, and high mechanical strength, making it an ideal choice for a wide range of filtration applications. The product is categorized into three primary series—ASHRAE, HEPA, and ULPA—each tailored to specific filtration efficiency requirements.

Product Overview and Key Features
Fiberglass air filter paper is renowned for its superior filtration performance. The uniform distribution of glass microfibers ensures consistent particle capture, while the low resistance design minimizes energy consumption. This material is also highly durable, capable of withstanding high-temperature environments and maintaining structural integrity under varying operational conditions.
- High Dust-Hold Capacity: Efficiently captures and retains particulate matter, extending filter lifespan.
- Low Air Resistance: Ensures optimal airflow, reducing the load on HVAC systems.
- Excellent Mechanical Strength: Resists tearing and deformation during installation and use.
- Customizable Efficiency Levels: Available in ASHRAE, HEPA, and ULPA grades to suit diverse applications.

Technical Specifications and Performance Metrics
The following table outlines the detailed technical specifications of fiberglass air filter paper across different classifications:
| Classification | Grade | Efficiency (%) | Basic Weight (g/m²) | Thickness (mm) | Air Resistance (Pa) | Tensile Strength (N/m) | Stiffness (mg) |
|---|---|---|---|---|---|---|---|
| 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 |

Applications Across Industries
Fiberglass air filter paper is a versatile solution for both industrial and residential settings. Its high-efficiency filtration capabilities make it suitable for:
- Residential HVAC Systems: Enhances indoor air quality by capturing dust, pollen, and other airborne particles.
- Industrial Air Purifiers: Used in cleanrooms, pharmaceutical manufacturing, and semiconductor production to maintain ultra-low particulate environments.
- Commercial Equipment: Integrates into vacuum cleaners, air compressors, and gas turbine air intakes for efficient dust management.
- Medical and Pharmaceutical Applications: Ensures sterile environments in laboratories, cleanrooms, and drug manufacturing facilities.
- Automotive and Aerospace: Filters for paint spray booths and aircraft cabin air systems to prevent contamination.
For specialized applications, ULPA-grade filters are employed in semiconductor fabrication, where even sub-micron particles must be eliminated to ensure product quality.
Company Background: Hebei Fangyu Filters Material Technology Co., Ltd.
Based in Hebei, China, Hebei Fangyu Filters Material Technology Co., Ltd. is a leading manufacturer of advanced filtration materials. With a focus on innovation and quality, the company specializes in producing fiberglass air filter paper and related products for global markets. Their commitment to rigorous testing and adherence to international standards ensures that their solutions meet the demands of critical applications.
The company’s product line includes HEPA filter paper, ULPA filter paper, and fiberglass filter paper, all engineered to deliver superior performance. Their state-of-the-art manufacturing processes and quality control systems are aligned with standards such as EN779 and ISO16890.
Industry Standards and Certifications
Fiberglass air filter paper is designed to comply with global standards for air filtration efficiency. The test standards include EN779 and ISO16890, which evaluate filter performance based on particle retention and airflow resistance. These certifications ensure that the product meets the stringent requirements of industries such as healthcare, electronics, and pharmaceuticals.
Key Standards:
- EN779: Defines the classification of air filters for general ventilation systems.
- ISO16890: Focuses on the efficiency of air filters in capturing airborne particles of different sizes.
For additional insights into air filtration standards, refer to the National Institute of Standards and Technology (NIST) website.
Conclusion
Fiberglass air filter paper is an essential component in modern air purification systems, offering unmatched efficiency, durability, and adaptability. Whether used in residential HVAC systems, industrial cleanrooms, or medical facilities, this advanced material ensures optimal air quality and operational reliability. With Hebei Fangyu Filters Material Technology Co., Ltd. as a trusted supplier, users can depend on high-quality solutions that meet global standards and exceed expectations.
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