Kỹ Thuật
A primary filter frame (also known as a pre-filter frame) is used in the initial stage of an air filtration system. It helps remove large particles such as dust, hair, pollen, and other contaminants from the air. These filters are typically installed at return air grilles, AHU inlets, or upstream of fine filters to protect downstream filters, reduce maintenance costs, and prolong the lifespan of high-efficiency filters like HEPA.
A primary filter frame typically includes:
Frame material: Made from durable materials such as aluminum, galvanized steel, stainless steel, or rigid plastic. It is designed for easy assembly, disassembly, and reusability.
Filter media: Usually made of G2–G4 grade synthetic fiber, non-woven fabric, or metal mesh, capable of capturing large dust particles and debris before they reach finer filters.
✔️ High initial filtration efficiency for particles ≥ 5 microns
✔️ Prolongs the life of fine filters and HEPA filters
✔️ Easy to clean, maintain, and reuse – cost-effective
✔️ Flexible in size – custom-made upon request
Primary filter frames are widely used in:
HVAC systems for buildings, shopping malls, commercial centers
Pharmaceutical, food, and electronics manufacturing plants
Cleanrooms, laboratories, and medical facilities
Industrial air handling and ventilation systems
| Specification | Details |
|---|---|
| Standard Size | 592 × 592 × 46 mm (custom sizes available) |
| Filtration Class | G2 – G4 (EN779 Standard) |
| Filter Media | Synthetic fiber, non-woven fabric, metal mesh |
| Filtration Efficiency | 60 – 90% for particles ≥ 5 microns |
| Recommended Airflow | 1.5 – 2.5 m/s |
| Max Operating Temp. | Up to 80°C |
Yes. Most primary filter frames are reusable. They can be cleaned and reinstalled multiple times. However, the filter media should be replaced periodically to ensure optimal performance.
It is recommended to inspect and clean the filter every 1–3 months. In dusty environments, more frequent replacement may be needed.
Common sizes include 595x595x46 mm, 290x595 mm, 295x295 mm, etc. At Cong Nghe Loc Khi, we also custom-produce filter frames to match your specific system.
Loose filter media (like pre-filter rolls) are standalone and can be cut to size.
Primary filter frames are complete units with the media fixed inside a rigid frame for easier installation.
Yes. Primary filter frames are commonly used as pre-filters in cleanroom air handling systems to reduce the load on fine and HEPA filters.
Yes. We provide on-site installation, replacement, and maintenance services, ensuring correct setup and efficient system operation.
At Cong Nghe Loc Khi, we specialize in manufacturing and supplying high-performance primary filter frames that meet technical standards for HVAC systems, cleanrooms, and industrial air handling applications.
✅ Genuine materials, long-lasting durability
✅ Custom sizes & bulk production available
✅ Fast nationwide delivery
✅ Professional technical support & warranty
📞 Hotline: 093 143 5454
🌐 Website: congnghelockhi.vn
📧 Email: info@congnghelockhi.vn
