Products
High Dust Holding Capacity White Polyester Air Pre Filter Material Hepa Filter Cloth For G2/G3/G4/F5
High Dust Holding Capacity White Polyester Air Pre Filter Material Hepa Filter Cloth For G2/G3/G4/F5
Features
Pre-filter media is an essential component in HVAC systems, designed to capture larger airborne particles such as dust, pollen, lint, and hair before they reach the main filter. This preliminary filtration helps to extend the life of the primary filter, maintain optimal airflow, and improve the overall efficiency of the HVAC system.
- Designed to capture larger airborne particles such as dust, pollen, lint, and hair.
- Made from robust materials like synthetic fibers, metal mesh, or pleated paper.
- Cost-effective and environmentally friendly by reducing waste.
Fast Sampling Support
Samples ready within 3–7 days for custom OEM & ODM orders. Flexible customization solutions are available to match your unique product requirements.
Advanced Production Equipment & Stable Quality
Equipped with professional automated production lines and sophisticated testing machinery, enabling consistent, reliable product quality across all batches.
Mass Production & On-Time Shipment
Efficient full-scale manufacturing capacity ensures finished goods can be delivered within 15–20 working days, guaranteeing punctual shipment schedules.
ISO Standard Strict Quality Control
All production follows strict ISO 9001 standards. Each shipment carries a complete quality inspection certificate to satisfy factory release specifications.
Description
Air pre-filter materials are designed to capture larger particles such as dust, debris, and larger contaminants before the air enters the main filtration system. These pre-filters help extend the lifespan of finer, more specialized filters downstream by preventing premature clogging. Common materials used for air pre-filters include:
Made from imported polyester fiber filter material, the fibers have varying melting points arranged in a three-dimensional, non-oriented structure. The manufacturing process includes needle punching, bonding, and hot melting. The resulting product features tightly bonded fibers, fracture resistance, detachment resistance, corrosion resistance, wear resistance, and elastic recovery.
- The product is non-toxic and environmentally friendly
- The filter material density gradually increases, forming a ladder structure
- Grade: G1-G4
- Frame Options: Cardboard, aluminum and galvanized steel
- Features low resistance, high dust capacity, washability, and long service life
- Offers good flame retardancy with a fire resistance rating of UL2
Technical Parameters
| Type | Thickness(mm) | Test Air Velocity (m/s) | Rated Air Flow(m3/h) |
Average arrestance (EN779) |
Initial Resistance (Pa) |
Final Resistance (Pa ) |
Dust Holding Capacity (g/m2) |
Filtration Class |
| HF-10 | 5 | 1.5 | 5400 | 65% | 15 | 250 | 400 | G2 |
| HF-20 | 10 | 1.5 | 5400 | 70% | 18 | 250 | 420 | G2 |
| HF-30 | 15 | 1.5 | 5400 | 80% | 20 | 250 | 520 | G3 |
| HF-40 | 20 | 1.5 | 5400 | 90% | 25 | 250 | 630 | G4 |
Standard Model Options
| Item | Specification |
|---|---|
| Product Name | White Polyester Pre-Filter Media Roll |
| Product Type | Primary Air Filter Media / Pre-Filter Cloth |
| Model Series | HF |
| Filter Media | Polyester Synthetic Fiber |
| Standard Grades | G2 / G3 / G4 |
| Structure | Progressive-Density Non-Woven Media |
| Standard Color | White |
| Thickness Range | 5–20 mm |
| Test Air Velocity | 1.5 m/s |
| Rated Airflow | 5400 m³/h |
| Initial Resistance | 15–25 Pa |
| Recommended Final Resistance | 250 Pa |
| Dust-Holding Capacity | 400–630 g/m² |
| Supply Form | Roll / Cut Pad / Framed Filter |
| Frame Options | Cardboard / Aluminum / Galvanized Steel |
| Main Function | Primary Dust and Coarse Particle Filtration |
Applications
| HVAC & Air-Conditioning Systems | Air Purifiers & Fresh-Air Units | Industrial & Commercial Ventilation | Specialized Pre-Filtration |
|---|---|---|---|
| Used as the first-stage filter in AHUs, central air-conditioning systems, fan coil units, and ventilation equipment. | Suitable for household and commercial air purifiers, fresh-air systems, and replacement pre-filter products. | Applied in factories, workshops, warehouses, airports, public transport systems, and commercial buildings. | Used to protect downstream filters in cleanrooms, medical facilities, agricultural ventilation, kitchens, electronics plants, and waste-management systems. |
Customization & Quality Control
| Customization Available | Quality Inspection |
|---|---|
| • Custom roll width and length • 5 / 10 / 15 / 20 mm or custom thickness • G2 / G3 / G4 filtration grades • Custom fiber density and dust-holding capacity • Roll, cut-pad, pleated, or framed-filter supply • Cardboard, aluminum, or galvanized steel frames • Washable and fire-resistant configurations • OEM labels, branding, samples, and export packaging |
• Roll width, length, and thickness inspection • Fiber density and progressive-structure verification • Surface uniformity and defect inspection • Airflow and initial-resistance testing • Average arrestance testing upon request • Dust-holding capacity verification • Washability and fire-resistance checks when specified • Final appearance and packaging inspection |
PRODUCT DETAILS
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