High-efficiency Filter Test Bench
The High-Efficiency Filter Test Bench is a specialized system designed to evaluate the filtration efficiency and resistance characteristics of HEPA and ULPA filters under rated airflow conditions. Utilizing DEHS aerosol and high-precision particle counting technology, the bench provides accurate MPPS (Most Penetrating Particle Size) efficiency measurements, resistance testing, and flow–pressure performance analysis. It is engineered according to European high-efficiency filtration principles to ensure reliable and repeatable results.
Application
This test bench is suitable for performance evaluation of high-efficiency air filtration products used in cleanrooms, microelectronics, pharmaceuticals, hospitals, nuclear facilities, aerospace, biolabs, and HVAC systems.
Typical test items include HEPA filters, ULPA filters, mini-pleat filters, panel filters, and high-efficiency fan filter units (FFUs).
It is widely used in filter manufacturers, third-party laboratories, quality inspection institutes, and R&D centers requiring precise MPPS and resistance testing.
Standards
The equipment complies with or references the following standards:
EN 1822 Series, including EN1822-5 – High-efficiency air filters
ISO 29463 – High-efficiency filters and filter media
IEST-RP-CC021 – HEPA/ULPA filter testing guidelines
GB/T 6165-2008 – Testing of high-efficiency air filters
Designed based on European principles for MPPS performance testing
Features
High-precision particle counting and DEHS aerosol distribution system
Supports full MPPS efficiency, resistance, and flow curve testing
Stable airflow control with ≤2% adjustment accuracy
Compatible with various filter sizes through interchangeable fixtures
Fully enclosed test channel ensures stability and safety
Automated data output and reporting via integrated printer
Engineered for long-term industrial and laboratory operation
Technical Parameters
| Parameter | Specification |
|---|---|
| Power Supply Voltage | Single-phase AC220V ±5%, Three-phase AC380V ±5% |
| Power Consumption | Approx. 15 kW |
| Frequency | 50 Hz ±2 Hz |
| Aerosol Type | DEHS |
| Particle Size | 0.1–0.3 μm |
| Test Efficiency | H13–U17: ≥99.95%–≥99.999995% (MPPS) |
| Resistance Range | 0–1000 Pa |
| Airflow Range | 500–3500 m³/h, accuracy ≤2% |
| Sampling Flow | 28.3 L/min ±5% |
| Applicable Filter Size | Max: 630 × 630 mm, Min: 300 × 300 mm |
| Data Output | Printer |
| Equipment Dimensions | Approx. 13,000 × 3,000 × 3,000 mm (L × W × H) |
Accessories
DEHS aerosol generator with concentration control
Calibrated particle counter
Filter fixtures for various sizes
Data printing module
Integrated control panel and safety interlock system
Test Procedures
Install the filter on the appropriate fixture and seal it properly.
Fill the DEHS aerosol generator and set the desired concentration.
Configure required airflow parameters and initialize particle counting.
Start the test to measure MPPS efficiency, resistance, and flow curves.
Record and print test results through the built-in reporting system.
Purge the pipeline after testing and clean aerosol-contacting components.
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