Introduction
Fiberglass air filter paper has emerged as a critical component in modern air purification systems, offering exceptional efficiency and durability. Manufactured using advanced wet-forming techniques, this product is designed to meet the stringent demands of various industries, from healthcare to semiconductor manufacturing. Fiberglass air filter paper is a versatile solution that combines high dust-hold capacity, low resistance, and robust mechanical strength. This article delves into the technical specifications, applications, and advantages of this innovative filtration material, while also highlighting the company behind its development.

Product Overview
Fiberglass air filter paper is crafted from glass microfiber wool, a material renowned for its fine fiber structure and high surface area. The wet-forming production method ensures uniform fiber distribution, which is essential for achieving optimal filtration performance. This product is categorized into three primary series based on filter efficiency: ASHRAE, HEPA, and ULPA. Each series is tailored to specific applications, ranging from general HVAC systems to ultra-clean environments in semiconductor manufacturing.

Key Features and Advantages
1. Exceptional Filtration Efficiency
The fiberglass filter paper is engineered to capture particles as small as 0.3 microns, making it suitable for high-precision applications. The ASHRAE series (F5–F9) offers efficient filtration for general air conditioning systems, while the HEPA series (H10–H14) ensures 99.97%–99.995% efficiency for cleanrooms and medical facilities. The ULPA series (U15–U17) achieves ultra-high efficiency, meeting the demands of semiconductor and pharmaceutical industries.
2. Low Air Resistance
One of the standout features of this filter paper is its low air resistance, which reduces energy consumption in ventilation systems. The optimized fiber structure minimizes pressure drop while maintaining high dust-hold capacity. This balance is critical for applications like HVAC systems and vacuum cleaners, where airflow efficiency is paramount.
3. High Mechanical Strength
The product’s tensile strength (1200 N/m) and stiffness (≥1000 mg) ensure durability under varying operating conditions. This makes it ideal for environments with high particulate loads, such as industrial exhaust systems and paint spray booths.
4. Versatile Applications
Fiberglass air filter paper is used in a wide range of applications, including:
- Home air conditioners and room air purifiers
- High-grade vacuum cleaners and air purifiers
- Photographic film manufacturing and microelectronic component assembly
- Pharmaceutical processing and nuclear air exhaust systems
- Chip factories and ultra-cleanrooms (100, 10, or even 1-grade environments)
Technical Specifications
The following table provides detailed technical data for the fiberglass air filter paper across its three series:
| 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 |

Applications and Industry Use Cases
The fiberglass air filter paper is indispensable in environments requiring precise air quality control. For example:
- Healthcare: HEPA filters are critical in hospital operating rooms and isolation units to prevent airborne infections.
- Manufacturing: ULPA filters are used in semiconductor fabrication to maintain ultra-clean environments, as even microscopic particles can damage sensitive components.
- Residential: ASHRAE-grade filters are commonly found in HVAC systems, improving indoor air quality and reducing allergens.
- Industrial: Vacuum cleaners and exhaust systems in paint spray booths rely on this material to capture fine particulates and prevent contamination.
According to the National Institute of Standards and Technology (NIST), “accurate measurement and control of particulate matter are essential for ensuring the reliability of critical systems, from medical devices to microelectronics” (NIST).
Company Background: Hebei Fangyu Filters Material Technology Co., Ltd.
Founded in 2005, Hebei Fangyu Filters Material Technology Co., Ltd. is a leading manufacturer of high-performance filtration materials. The company specializes in producing fiberglass filter paper and other advanced filtration solutions for global markets. With a commitment to innovation and quality, Hebei Fangyu adheres to international standards such as EN779/ISO16890, ensuring its products meet the highest performance benchmarks.
As highlighted by NIST, “the development of precise filtration technologies is vital for advancing manufacturing and environmental protection” (NIST). Hebei Fangyu’s dedication to research and development aligns with this goal, making it a trusted partner for industries requiring reliable air purification systems.
Conclusion
The fiberglass air filter paper exemplifies the synergy between advanced materials science and practical engineering. Its combination of high efficiency, durability, and versatility makes it a preferred choice across diverse industries. As demand for clean air solutions grows, products like this will continue to play a pivotal role in safeguarding health, enhancing productivity, and supporting technological innovation.
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