Our cotton fiber coarse filter media represents the pinnacle of natural fiber filtration technology, engineered for high-performance coarse filtration in demanding industrial environments. Crafted from premium, sustainably sourced cotton fibers, this media excels in capturing larger airborne particulates, dust, and debris while maintaining exceptional airflow efficiency. Ideal for primary filtration stages, the cotton fiber coarse filter media serves as a robust barrier in HVAC systems, air handling units, and industrial ventilation setups worldwide.
What sets our cotton fiber coarse filter media apart is its unique blend of natural cotton fibers, which provide superior dust-holding capacity without compromising on breathability. This media is designed to handle high dust loads in pre-filtration applications, extending the service life of downstream fine filters and reducing overall maintenance costs. With a focus on durability and environmental compatibility, our product undergoes rigorous processing to ensure uniformity in fiber density and structural integrity.
In international trade markets, where reliability and performance are paramount, our cotton fiber coarse filter media meets global standards such as ISO 16890 and EN 779. It is widely utilized in sectors requiring efficient air purification, from manufacturing plants to commercial buildings. By leveraging the inherent absorbency and tensile strength of cotton, this filter media delivers consistent performance across a broad range of humidity and temperature conditions, making it a trusted choice for B2B buyers seeking long-term value.
| Parameter | Value | Test Standard | Notes |
|---|---|---|---|
| Material | 100% Natural Cotton Fiber | ISO 16890 | Non-woven structure |
| Filtration Class | G3 / G4 (Coarse) | EN 779 / ISO 16890 | ISO Coarse 50% - 65% |
| Thickness | 5-20 mm | Customizable | Standard: 10 mm |
| Average Fiber Diameter | 20-50 μm | SEM Analysis | Optimized for coarse capture |
| Airflow Resistance (Initial) | ≤ 25 Pa @ 1.5 m/s | ISO 5011 | Low pressure drop |
| Dust-Holding Capacity | ≥ 300 g/m² | ASHRAE 52.2 | At 100 Pa final |
| Gravimetric Efficiency | ≥ 85% @ 0-10 μm | EN 779 | For coarse particles |
| Maximum Operating Temperature | 80°C | Internal Testing | Continuous duty |
| Humidity Tolerance | 20-95% RH | ISO 16890 | Non-hygroscopic treatment |
| Roll Width | 1.0-2.2 m | Custom | Length: up to 100 m |
| Weight (GSM) | 80-150 g/m² | ISO 9073-1 | Lightweight design |
| Flammability | Class 1 (Optional FR) | UL 900 | Meets safety standards |
All specifications are subject to manufacturing tolerances of ±5%. Custom specifications available upon request for specific B2B applications.

In commercial and industrial HVAC setups, our cotton fiber coarse filter media acts as the first line of defense, capturing bulk dust and pollen to protect finer filters. Its high dust-holding capacity reduces changeout frequency in high-traffic buildings like hospitals, schools, and offices.
For manufacturing environments such as woodworking shops, metal fabrication, and food processing plants, the media effectively removes coarse particulates like sawdust, metal shavings, and flour particles, ensuring compliance with OSHA and EU ATEX regulations.
Integrated into cabin air filters and engine intake systems, cotton fiber coarse filter media provides reliable pre-filtration, enhancing vehicle air quality and engine longevity in buses, trucks, and passenger cars.
In gas turbine inlet air filtration, it safeguards compressors from large debris, maintaining efficiency in power plants and renewable energy installations.
Versatile for cleanroom pre-filters, agricultural drying systems, and marine ventilation, where natural fiber durability outperforms synthetics in corrosive or dusty conditions.
As a leading manufacturer in the filtration industry, we specialize in cotton fiber coarse filter media with over 20 years of expertise in natural fiber processing. Our state-of-the-art production facilities in Asia employ automated needle-punching and thermal bonding technologies to deliver unmatched consistency and quality. We hold certifications including ISO 9001, IATF 16949, and REACH compliance, ensuring our products meet the stringent demands of international B2B trade.
Our commitment to innovation drives continuous R&D, resulting in proprietary treatments that enhance the cotton fiber coarse filter media's performance in extreme conditions. We offer full traceability from raw cotton sourcing to final packaging, providing transparency and peace of mind for global importers. With flexible MOQs, rapid prototyping, and dedicated technical support, we partner with clients to optimize filtration solutions tailored to their unique needs.
Choosing us means accessing a reliable supply chain resilient to market fluctuations, backed by rigorous third-party testing from labs like TUV and SGS. Our cotton fiber coarse filter media not only performs exceptionally but also aligns with corporate sustainability goals, making it the smart choice for forward-thinking businesses.
It is designed for primary or pre-filtration, capturing coarse particles (0-10 μm) in air streams to protect secondary filters in HVAC and industrial systems.
Yes, our treated cotton fiber coarse filter media withstands up to 95% RH without losing structural integrity or efficiency.
Absolutely. We provide rolls, sheets, or custom-cut panels in widths up to 2.2 m and thicknesses from 5-20 mm.
Achieving G3/G4 classification, it delivers ≥85% gravimetric efficiency for coarse dust per EN 779 standards.
Yes, 100% biodegradable cotton fibers make it a sustainable alternative to petroleum-based media.
It offers higher dust capacity and better moisture resistance at a competitive price, with natural antimicrobial benefits.
ISO 16890, EN 779, ASHRAE 52.2, UL 900 (FR versions), and more, verified by independent labs.
Depending on dust load, it lasts 3-12 months, with dust-holding capacity exceeding 300 g/m².