ISO 16890 FINE FILTRATION
Rigid Filter (Aluminum Frame)
Rigid Filter (Aluminum Frame) is a compact air filter used to capture fine particles in HVAC systems, provide second- or final-stage filtration, and protect HEPA filters against excessive particulate loading.
Glass-fiber filter media, hot-melt separators, two-component polyurethane sealing compound and an aluminum frame provide a rigid filter construction. Standard-capacity 100 mm models and high-capacity 130 mm models can be selected according to filtration area and pressure-drop requirements.
ISO ePM1–ePM10
100 and 130 mm
Aluminum Frame
100 and 130 mm
Aluminum Frame
Filter Standard
ISO 16890
Standard Depth
100–130 mm
Nominal Airflow
750–3,000 m³/h
Maximum Temperature
80°C
What Is a Rigid Filter?
A rigid filter is a fine-filtration element manufactured by securing densely pleated glass-fiber media inside a durable frame. The aluminum frame combines low weight with mechanical rigidity. It also helps the filter retain its form during installation in the filter housing.
Hot-melt separators maintain the spacing between the filter-media pleats. Therefore, airflow passages remain open and the available filter surface can be used effectively. A two-component polyurethane compound at the media-to-frame joints supports perimeter sealing.
The 100 mm models provide standard capacity, while the 130 mm models offer a larger filtration area and high-capacity construction. A larger filter area can help reduce the initial pressure drop at the same nominal airflow.
Filter Selection and Application Process
01
System Analysis
Airflow, filter housing, pressure drop and filtration stage are determined.
02
Filter Class
ISO ePM1 or ISO ePM10 is selected according to the required indoor air quality.
03
Capacity Selection
A 100 mm standard-capacity or 130 mm high-capacity design is evaluated.
04
Flange and Gasket
20 or 25 mm flange and EPDM gasket options are selected according to the mounting configuration.
05
Operational Monitoring
Filter pressure drop is monitored with a differential pressure indicator.
Technical Specifications
| Filter standard | ISO 16890 | Filter classes | ISO ePM1, ISO ePM2.5 and ISO ePM10 |
| Filter media | Glass fiber | Frame | Aluminum |
| Standard depth | 100 and 130 mm | Capacity | Standard or high capacity |
| Maximum operating temperature | 80°C | Surface protection | Optional |
| Sealing compound | Two-component polyurethane | Separator | Hot-melt adhesive |
| Flange options | 20 or 25 mm | Gasket options | No gasket, EPDM or double-sided EPDM |
| Recommended final pressure drop | According to the EN 13053 approach, whichever is lower: initial ΔP + 100 Pa or initial ΔP × 3 | ||
Standard note: EN 779 has been withdrawn. M6, F7, F8 and F9 are shown only for historical classification and comparison with legacy projects. Current filter selection should be based on ISO 16890 classification.
Eurovent certification or similar third-party certifications should be verified at the project stage according to the product manufacturer, model, dimensions and current certification scope.
Product Coding System
| Product Type | Filter Class | Frame | Capacity | Flange | Dimensions | Surface Protection | Gasket |
|---|---|---|---|---|---|---|---|
| AR Rigid Filter |
M6 F7 F8 F9 |
A: Aluminum | M: Standard capacity H: High capacity |
20: 20 mm 25: 25 mm |
Width × Height × Depth Example: 592 × 592 × 130 mm |
FW: None FC: Clean-air side FD: Dirty-air side FB: Both sides |
W: None E: EPDM EE: Double-sided EPDM |
Example Product Code
AR-F8-A-H-25-592-592-130-FC-E
Rigid filter – historical F8 class – aluminum frame – high capacity – 25 mm flange – 592 × 592 × 130 mm – surface protection on clean-air side – EPDM gasket
Rigid Filter (Aluminum Frame) / 100 mm
| Filter Model | EN 779 (withdrawn) |
ISO 16890 | Dimensions W × H × D (mm) |
Filtration Area (m²) |
Nominal Airflow (m³/h) |
Initial Pressure Drop (Pa) |
|---|---|---|---|---|---|---|
| AR-M6-A-M-25-287-287-100-FW-W | M6 | ePM10 70% | 287 × 287 × 100 | 2.5 | 750 | 100 |
| AR-M6-A-M-25-287-592-100-FW-W | M6 | ePM10 70% | 287 × 592 × 100 | 5 | 1,500 | 100 |
| AR-M6-A-M-25-490-592-100-FW-W | M6 | ePM10 70% | 490 × 592 × 100 | 8.3 | 2,500 | 100 |
| AR-M6-A-M-25-592-592-100-FW-W | M6 | ePM10 70% | 592 × 592 × 100 | 10 | 3,000 | 100 |
| AR-F7-A-M-25-287-287-100-FW-W | F7 | ePM1 55% | 287 × 287 × 100 | 2.5 | 750 | 125 |
| AR-F7-A-M-25-287-592-100-FW-W | F7 | ePM1 55% | 287 × 592 × 100 | 5 | 1,500 | 125 |
| AR-F7-A-M-25-490-592-100-FW-W | F7 | ePM1 55% | 490 × 592 × 100 | 8.3 | 2,500 | 125 |
| AR-F7-A-M-25-592-592-100-FW-W | F7 | ePM1 55% | 592 × 592 × 100 | 10 | 3,000 | 125 |
| AR-F8-A-M-25-287-287-100-FW-W | F8 | ePM1 65% | 287 × 287 × 100 | 2.5 | 750 | 150 |
| AR-F8-A-M-25-287-592-100-FW-W | F8 | ePM1 65% | 287 × 592 × 100 | 5 | 1,500 | 150 |
| AR-F8-A-M-25-490-592-100-FW-W | F8 | ePM1 65% | 490 × 592 × 100 | 8.3 | 2,500 | 150 |
| AR-F8-A-M-25-592-592-100-FW-W | F8 | ePM1 65% | 592 × 592 × 100 | 10 | 3,000 | 150 |
| AR-F9-A-M-25-287-287-100-FW-W | F9 | ePM1 85% | 287 × 287 × 100 | 2.5 | 750 | 170 |
| AR-F9-A-M-25-287-592-100-FW-W | F9 | ePM1 85% | 287 × 592 × 100 | 5 | 1,500 | 170 |
| AR-F9-A-M-25-490-592-100-FW-W | F9 | ePM1 85% | 490 × 592 × 100 | 8.3 | 2,500 | 170 |
| AR-F9-A-M-25-592-592-100-FW-W | F9 | ePM1 85% | 592 × 592 × 100 | 10 | 3,000 | 170 |
Rigid Filter (Aluminum Frame) / 130 mm
| Filter Model | EN 779 (withdrawn) |
ISO 16890 | Dimensions W × H × D (mm) |
Filtration Area (m²) |
Nominal Airflow (m³/h) |
Initial Pressure Drop (Pa) |
|---|---|---|---|---|---|---|
| AR-M6-A-H-25-287-287-130-FW-W | M6 | ePM10 75% | 287 × 287 × 130 | 3.2 | 750 | 90 |
| AR-M6-A-H-25-287-592-130-FW-W | M6 | ePM10 75% | 287 × 592 × 130 | 6.5 | 1,500 | 90 |
| AR-M6-A-H-25-490-592-130-FW-W | M6 | ePM10 75% | 490 × 592 × 130 | 10.7 | 2,500 | 90 |
| AR-M6-A-H-25-592-592-130-FW-W | M6 | ePM10 75% | 592 × 592 × 130 | 13 | 3,000 | 90 |
| AR-F7-A-H-25-287-287-130-FW-W | F7 | ePM1 55% | 287 × 287 × 130 | 3.2 | 750 | 110 |
| AR-F7-A-H-25-287-592-130-FW-W | F7 | ePM1 55% | 287 × 592 × 130 | 6.5 | 1,500 | 110 |
| AR-F7-A-H-25-490-592-130-FW-W | F7 | ePM1 55% | 490 × 592 × 130 | 10.7 | 2,500 | 110 |
| AR-F7-A-H-25-592-592-130-FW-W | F7 | ePM1 55% | 592 × 592 × 130 | 13 | 3,000 | 110 |
| AR-F8-A-H-25-287-287-130-FW-W | F8 | ePM1 75% | 287 × 287 × 130 | 3.2 | 750 | 140 |
| AR-F8-A-H-25-287-592-130-FW-W | F8 | ePM1 75% | 287 × 592 × 130 | 6.5 | 1,500 | 140 |
| AR-F8-A-H-25-490-592-130-FW-W | F8 | ePM1 75% | 490 × 592 × 130 | 10.7 | 2,500 | 140 |
| AR-F8-A-H-25-592-592-130-FW-W | F8 | ePM1 75% | 592 × 592 × 130 | 13 | 3,000 | 140 |
| AR-F9-A-H-25-287-287-130-FW-W | F9 | ePM1 85% | 287 × 287 × 130 | 3.2 | 750 | 160 |
| AR-F9-A-H-25-287-592-130-FW-W | F9 | ePM1 85% | 287 × 592 × 130 | 6.5 | 1,500 | 160 |
| AR-F9-A-H-25-490-592-130-FW-W | F9 | ePM1 85% | 490 × 592 × 130 | 10.7 | 2,500 | 160 |
| AR-F9-A-H-25-592-592-130-FW-W | F9 | ePM1 85% | 592 × 592 × 130 | 13 | 3,000 | 160 |
Production and tolerance note: Custom dimensions can be evaluated on a project basis. According to the stated technical requirement, differential pressure tolerance should be evaluated using whichever is greater: “±10% + 5 Pa” or “10 Pa + 5 Pa”.
Comparison of 100 mm and 130 mm Models
| Comparison Criterion | 100 mm Model | 130 mm Model |
|---|---|---|
| Capacity code | M – Standard | H – High |
| Filtration area | 2.5–10 m² | 3.2–13 m² |
| Nominal airflow | 750–3,000 m³/h | 750–3,000 m³/h |
| Initial pressure drop | 100–170 Pa | 90–160 Pa |
| Main selection criterion | Limited filter depth | Larger filtration area and lower initial pressure drop |
Structural Components
Glass-Fiber Media
High-surface-area filter media designed to capture fine particles.
Aluminum Frame
Provides low weight, mechanical rigidity and dimensional stability during installation.
Hot-Melt Separator
Helps maintain pleat spacing and airflow passages.
Polyurethane Sealing
Seals the perimeter joint between the filter media and frame.
Surface Protection
Protective surfaces can be applied on the clean side, dirty side or both sides.
EPDM Gasket
Supports perimeter sealing between the filter and filter housing.
Application Areas
Fine-particle capture
Second-stage filtration in HVAC systems
Final-stage filtration in HVAC systems
Prefiltration for HEPA filters
Air handling units
Industrial ventilation systems
Product Advantages
Large filtration area: Provides a large media surface within compact external dimensions.
Rigid construction: The aluminum frame helps maintain filter shape during installation and operation.
Low weight: The aluminum frame can simplify handling and filter replacement.
High dust-holding capacity: The large filter area can support effective management of service intervals.
Capacity options: 100 and 130 mm models can be selected for different pressure-drop targets.
Custom dimensions: Project-specific production can be evaluated after technical suitability checks.
Filter Selection Criteria
- Nominal and actual system airflow
- Required ISO 16890 filter class
- Filter-housing width, height and depth
- Permitted initial and final pressure drop
- Required 100 or 130 mm depth
- Compatibility with 20 or 25 mm flange
- Gasket and compression system
- Airflow direction and surface-protection side
- Ambient temperature and relative humidity
- Dust concentration and particle characteristics
Inspection and Maintenance
The operating pressure drop should be monitored regularly with a differential pressure indicator or transmitter. Filter replacement should be determined by evaluating pressure drop, actual airflow, dust loading, operating time, hygiene requirements and the physical condition of the filter together.
Unless the technical documentation clearly states that the glass-fiber filter media is washable, it should not be cleaned with water or compressed air. Improper cleaning may damage the filter media, pleat geometry and perimeter sealing.
Frequently Asked Questions
What is the difference between 100 mm and 130 mm rigid filters?
The 130 mm models have a larger filtration area. Therefore, at the same nominal airflow, their initial pressure drop can be lower than that of 100 mm models.
Can a rigid filter replace a HEPA filter?
No. This product is a fine-particle filter classified under ISO 16890. It can be installed upstream of a HEPA filter but does not replace HEPA filtration.
Are F7, F8 and F9 filter classes still current?
EN 779 has been withdrawn. These classes are shown only for historical comparison. Current selection should be based on ISO 16890 classification.
Is an EPDM gasket required for a rigid filter?
Gasket requirements depend on the filter housing, compression mechanism and required perimeter sealing level.
Can a custom-size Rigid Filter (Aluminum Frame) be manufactured?
Custom sizes can be evaluated on a project basis after checking filtration area, airflow, pressure drop, frame strength and manufacturing limits.
Technical Application Note
The nominal airflow, filtration area and initial pressure-drop values shown in the tables are reference product data. Actual filter performance may vary depending on process conditions, installation method, test area, actual airflow, filter face velocity, system pressure, perimeter leakage, filter-housing tightness, calibration of measuring instruments, dust loading, particle size, relative humidity, temperature and operating time. Final product selection should be made by evaluating the entire system.
Select the Right Rigid Filter for Your Project
Contact Airtes for Rigid Filter (Aluminum Frame) selection according to airflow, ISO 16890 class, filter dimensions, 100 or 130 mm depth, flange, surface protection and gasket options.
