Products
High Dust Holding Capacity Primary Intake Filter Media for Air Filter Practical Air Inlet Pre Filter Rolls for HEPA Filtration System
High Dust Holding Capacity Primary Intake Filter Media for Air Filter Practical Air Inlet Pre Filter Rolls for HEPA Filtration System
Features
Pre-filters are crucial for the performance of air purification systems as they are responsible for trapping larger particles like dust, pet dander, and hair. These filters act as the primary defense by capturing these particles before the air undergoes further filtration stages, enhancing the overall efficiency and effectiveness of the system.
- High Particle Capture Efficiency: Effectively traps larger airborne particles such as dust, pollen, lint, and hair, protecting your main filter and enhancing overall air quality.
- Optimized Airflow: Engineered to allow maximum airflow while maintaining high filtration efficiency, reducing pressure drop and ensuring the smooth operation of your HVAC system.
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
Pre-filters are the initial line of defense in an air purification system. They are the first stage of filtration, designed to capture larger particles and prevent them from entering the main filtration system. These particles can include dust, hair, pet dander, pollen, and other visible debris commonly found in indoor environments. It can effectively filter harmful substances in the air to ensure your health. We pay attention to every detail, carefully designing and manufacturing the filter wool to ensure that it is tightly structured, not easy to deform, and provides stable and reliable filtration effect.Filter cotton is suitable for home, office, car and other occasions, can effectively purify the air, let you breathe fresh and healthy air environment.
Our filter cotton adopts simple design, which is easy and quick to install, and also very simple to clean, only need to gently tap or rinse with water to restore the filtration effect, saving time and labor.
- Made from organic synthetic fiber, it offers excellent resistance to creasing, as well as superior elasticity and stability
- Featuring an incremental structure with multi-layer step-by-step encryption technology, it can trap dust at different density levels based on particle size, enhancing its dust-holding capacity
- The air outlet surface is reinforced with a net, and an additional layer of square woven net (with optional net or cloth surface) is added for extra strength and shape retention
- High dust-holding capacity, low resistance, and cost-effective practicality
- The filter material undergoes full gum dipping treatment to prevent fiber shedding; it can be fully adhesive, surface adhesive, or processed dry
- 380g/400g/500g/600g available
- Washable economical
- Size customization available
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) | FiltrationClass |
| 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 Progressive-Density Pre-Filter Media Roll |
| Product Type | Primary Air Intake Filter Media |
| Model Series | HF |
| Standard Models | HF-10 / HF-20 / HF-30 / HF-40 |
| Filter Material | Synthetic Fiber |
| Filtration Grades | G2 / G3 / G4 |
| Structure | Multilayer Progressive-Density Nonwoven |
| 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 Pad |
| Main Function | Coarse Particle Capture and HEPA Pre-Filtration |
| OEM / ODM | Available |
Applications
| HVAC & Air Intake Systems | Spray Booths & Painting Workshops | HEPA Pre-Filtration | Industrial Air Filtration |
|---|---|---|---|
| Used as primary filtration media in AHUs, central air-conditioning systems, fresh-air units, fan coil systems, and return-air inlets. | Captures dust and fine contamination at spray booth air inlets, painting equipment, workshops, and baking installations. | Installed upstream of medium- and high-efficiency filters to reduce dust loading and extend HEPA filter service life. | Suitable for factories, clean-air equipment, ventilation units, air purifiers, and general dust-removal systems. |
Customization & Quality Control
| Customization Available | Quality Inspection |
|---|---|
| • Custom roll width and roll length • 5 / 10 / 15 / 20 mm or custom thickness • G2 / G3 / G4 filtration configurations • Custom fiber density and basis weight • Support mesh and adhesive-treatment options • Roll, cut-pad, or framed-pad supply • Washable or disposable configurations • OEM labels, branding, samples, and export packaging |
• Roll width, length, and thickness inspection • Fiber density and progressive-structure verification • Support mesh and adhesive-treatment inspection • Surface uniformity and fiber-shedding check • Airflow and initial-resistance testing • Average arrestance testing upon request • Dust-holding capacity verification • Final appearance and packaging inspection |
PRODUCT DETAILS
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