HEPA (High Efficiency Particulate Air Filter), also known as HEPA, is widely used in places that require high cleanliness air, such as electronics, medicine, food, scientific research experiments, precision instruments, and aerospace.
Adopting a non partition design eliminates the risk of damaging the filter medium with partition plates, effectively increases the filtration area, improves filtration efficiency, and reduces airflow resistance. Its filtration efficiency for 0.3 micron particles can reach over 99.97%, with H13 being a common high efficiency level. The main filter material used is glass fiber filter paper, as well as PP, PET and other materials
Details
Filter object: Sub micron particles (PM2.5, viruses, bacteria, smoke, dust) ≥ 0.3 μ m
Efficiency level: H10-H14 (EN 1822)
H13-H14 (commonly used): 99.97% -99.995% (sodium flame method/MPPS method)
Structural form: No partition
No partition: separated by hot melt adhesive, small volume, low resistance, and light weight
Frame material: aluminum alloy, stainless steel, galvanized sheet, ABS plastic
Filter material: ultra-fine glass fiber paper (mainstream), PP high-efficiency filter paper
Core Features
The filtration efficiency is extremely high, almost intercepting all micro particles
Strictly sealed, PAO leak detection factory test
High initial resistance (200-250Pa), final resistance 400-600Pa
Service life 1-3 years (depending on operating conditions)
Application
Cleanrooms in the pharmaceutical, biological, food and beverage industries at the 10000/1000 level
Hospital operating room ICU、 Aseptic ward
Semiconductor, electronic chip, precision instrument manufacturing
Laboratory, efficient air supply outlet FFU、 clean bench
Air Filter Product Parameters
| Parameter | Primary Filter | Medium Efficiency Bag Filter | HEPA Filter | ULPA Filter |
| Filtration Accuracy | ≥5μm large particles | 1–5μm medium particles | ≥0.3μm fine particles | ≥0.12μm nano-scale particles |
| Efficiency Grade | G1–G4 | F5–F9 | H13–H14 | U15–U17 |
| Typical Efficiency | 20%–90% (gravimetric method) | 45%–97% (counting method) | 99.97%–99.995% | ≥99.9995% |
| Filter Media | Non-woven fabric, metal mesh | Non-woven fabric, fiberglass | Ultra-fine glass fiber | Borosilicate glass fiber |
| Initial Resistance | ≤50Pa | ≤150Pa | 200–250Pa | 250–350Pa |
| Service Life | 1–3 months | 6–12 months | 1–3 years | 2–5 years |
| Main Function | Pre-filtration, rear-end protection | Intermediate filtration, dust removal | Terminal fine filtration, bacteria removal | Ultra-clean filtration, nano-particle removal |
