HEPA Filters
Flat Air Filters
Flat air filters are commonly used in HVAC systems, automotive engines, and industrial air filtration applications. These filters are designed to trap airborne particles, including dust, pollen, and other contaminants, improving air quality.
- Frame Material: Galvanized Sheet, Stainless Steel, Aluminum Sheet.
- Filter Media: Fiberglass, Polyester or Synthetic Fiber, Cotton, Activated Carbon, Electrostatic Media, HEPA (High-Efficiency Particulate Air) Material.
- Size: Customized.
Product Description
Common Size
| Nominal Size (inches) | Actual Size (mm) | Rated Airflow (m/s) | Initial Pressure (Pa) | Final Pressure (Pa) | AVerage arrestance (%) | Filter Object (um) | Filtration class |
| 12*24*2 | 295*595*46 | 1600 | <40 | ≤250 | 95 | ≥5 | G4 |
| 20*20*2 | 495*495*46 | 2200 | <40 | ≤250 | 95 | ≥5 | G4 |
| 20*24*2 | 495*595*46 | 2700 | <40 | ≤250 | 95 | ≥5 | G4 |
| 24*24*2 | 595*595*46 | 3200 | <40 | ≤250 | 95 | ≥5 | G4 |
Filter Media and Performance
| Material | Properties | Applications | Advantages | Limitations |
| Fiberglass | Made from fine,spun glassfibers. Lowefficiency. | Basic residential HVAC systems. | Inexpensive, lightweight. | Poor at trapping small particles, low efficiency. |
| Polyester/Synthetic Fiber | Woven or bonded synthetic fibers. Higher efficiency than fiberglass. | Residential, commercial HVAC, automotive filters. | Durable, effectivefor smallerparticles,pleatable formore surfacearea. | More expensive, needs regular replacement. |
| Cotton | Natural fiber, often woven or bonded. | Some residential, industrial filters. | Environmentally friendly, reusable in some cases. | Less effective for fine particles compared to synthetics. |
| Activated Carbon | Carbon granules combined with fiber. Absorbs odors and VOCs. | Areas with strong odors or chemicals (e.g., kitchens). | Odor removal,VOC absorption. | Requires frequent replacement, higher cost. |
| Electrostatic Media | Synthetic fibers with electrostatic charge that traps fine particles. | Residential, commercial HVAC for improved air quality. | Can capture fineparticles, reusableoptions available. | Requires washing to maintain effectiveness. |
| HEPA Material | Dense layer of fibers, typically fiberglass or synthetic. Captures 99.97% of particles 0.3microns or larger. | Clean rooms, medical facilities, high-efficiency purifiers, | Very high filtration efficiency. | Expensive,needs more frequent replace ment in high-dust environments. |
Applications
Hospital, Pharmaceutical plants, Chip plants, Stockbreeding, Glass screen factory, Photovoltaic plants, PCB factory, Painting booth, Semi-conductor plant, Manufacturing Plant, Machinery Repair Shops, Food & Beverage Factory, Home Use, Construction works, Energy & Mining. Such as:
- Fresh air unit and ventilation system of central air-conditioning.
- Special constant-temperature and constant-humidity air conditioning units for program-controlled exchanges and computer rooms.
- Pre-filtration system for air compressors and gas turbines.
- Pre-filtration system for HEPA filters.
Philite® Specializes in High-quality Flat Air Filters
Our filtration products have passed SGS and ISO9001 certification and are exported to Europe, North America, Southeast Asia, Africa and other regions. With our emphasis on quality and after-sales service, we have won a good reputation in the filtration industry.
