Fiberglass air filter paper, manufactured using glass microfiber wool, represents a cutting-edge solution in air filtration technology. This material is produced through a wet-forming process, ensuring uniform fiber distribution, high dust-hold capacity, low resistance, and exceptional strength. Developed by Hebei Fangyu Filters Material Technology Co., Ltd., these filters are categorized into three series based on their efficiency: ASHRAE, HEPA, and ULPA. This article explores the technical specifications, applications, and advantages of these filters, supported by authoritative references from NIST (National Institute of Standards and Technology).
The fiberglass air filter paper is engineered to meet rigorous industry standards, including EN779/ISO16890 for air filter testing. Below is a detailed specification table outlining the performance characteristics of different filter 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 | |
The fiberglass air filter paper excels in several critical areas:
These filters are widely used in both commercial and industrial settings, including:
Based in Hebei, China, Hebei Fangyu Filters Material Technology Co., Ltd. is a leading manufacturer of high-performance filtration materials. With a focus on innovation and quality, the company adheres to international standards such as EN779/ISO16890 to ensure product reliability. Their expertise in glass microfiber technology has made them a trusted supplier for industries requiring precision filtration solutions.



NIST (National Institute of Standards and Technology) provides critical guidelines for air filtration testing and material standards. Their research on particle capture efficiency and filter performance metrics ensures that products like fiberglass air filter paper meet global quality benchmarks.
The fiberglass air filter paper from Hebei Fangyu Filters Material Technology Co., Ltd. represents a reliable and versatile solution for air purification needs. With its advanced technical specifications, broad application range, and adherence to NIST standards, this product continues to set benchmarks in the filtration industry.
Raw Material: Various technical polypropylene and non-woven fiber
Process Technilogh:composite
Application:Pocket(bag) Filter
Range of efficiency:M5 to F9
F5:white+activated carbon:150g/㎡
F6:green+activated carbon:150g/㎡
F7:pink+activated carbon:150g/㎡
F8:yellow +activated carbon:150g/㎡
Thickness:0.2-6 mm or Customized
Strand Thickness:0.5-8mm
Swd:2.5-100mm Lwd: 4.5-200mm
Surface Treatment:Powder Coated,Galvanized
MATERAL: PHENOLIC PAPER
MELT-BLOWN PBT
NON-WONEN LAMINATES
DIESEL FUEL FINE FILTERATION GRADE
APPLICATION : FUEL OIL WATER SEPERATION FILTER MEDIA
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