High-efficiency particulate air (HEPA), also known as high-efficiency particulate absorbing and high-efficiency particulate arrestance, is an efficiency standard of air filter.
Filters meeting the HEPA standard must satisfy certain levels of efficiency. Common standards require that a hepa air filter must remove—from the air that passes through—at least 99.95% (European Standard) or 99.97% (ASME, U.S. DOE) of particles whose diameter is greater than or equal to 0.3 µm.
Hepa filters are filters with very strong drafting power. Thanks to this feature, it is used in many areas. Hepa filters are mostly used in hospital buildings, operating rooms and especially in clean rooms. Since it has a safe structure and its gravity is extremely good, it keeps the moisture, temperature, dust and other elements in the environment in balance and provides a healthier environment.
Feature
1. Large filtration area and long service life.
2. High air volume, low resistance and high dust capacity.
3. High filtration efficiency and good wind speed uniformity.
Material Composition And Operating Conditions
Material | Ultrafine Fiber Glass Paper With Aluminum Frame |
Dividers | 120g/m³ adhesive paper |
Sealing Strip | EVA or melt adhesive |
Sealant | PU two-component polyurethane AB adhesive |
Filtration Efficiency | H13, H14 |
Permissible max relative temperature | 80℃ |
Permissible max relative humidity | 80% |
Parameters
Size (mm) | Rated Air Rate (m³/h) | Filter Area (㎡) | Initial Resistance (Pa) | Initial Resistance (Pa) | Efficiency |
320*320*150 | 250 | 2.59 | 200-220 | 400-600 | H13 |
484*484*150 | 600 | 6.00 | H14 | ||
610*610*150 | 1000 | 9.59 | H13 | ||
915*610*150 | 1500 | 14.38 | H14 | ||
1170*610*150 | 1750 | 16.97 | H13 | ||
1220*610*150 | 2000 | 19.17 | H14 |
Application
a. Widely used in electronics factory, semiconductor, precision machinery, pharmaceutical, hospital food and other industries, advanced purification equipment, purification system and filter components, local purifition equipment and clean plant.
b. Intermediate filtration of centralized ventilation and air conditioning system in cleanroom.