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Nordic CL2/CL3/CL4 FILTER SET (290X234X48)
€21.46
Nordic CL2/CL3/CL4 Filter Set (290x234x48) delivers complete F7+F7 filtration for Flexit Nordic CL2, CL3, and CL4 recuperators. This set includes two high-efficiency F7 filters (ePM1 70%) that capture ultra-fine particles down to 0.3 μm, ensuring cleaner indoor air and reliable ventilation performance. Manufactured with moisture-resistant cardboard frames and DEEP PLEAT technology for extended service life.
Fast EU delivery. Perfect fit for Flexit Nordic models.
Date sheet
- Dimensions (mm)
- 290x234x48
- The set includes:
- Filters - 2 pcs.
- Delivery of goods
- Delivery cost is calculated at checkout based on your country.
- The model is bending.
- Nordic CL2/CL3/CL4
Buy Nordic CL2/CL3/CL4 Filter Set (290x234x48) online at filters1.eu. This complete replacement filter set delivers reliable F7+F7 filtration for your Flexit Nordic CL2, CL3, or CL4 HRV unit, ensuring cleaner indoor air and efficient ventilation performance.
This filter set is specifically designed for Flexit Nordic CL2/CL3/CL4 recuperators. The set includes two F7 filters (ePM1 70% according to ISO 16890) that work together to filter both incoming fresh air and outgoing exhaust air. These compatible replacement filters provide reliable protection against fine particles while maintaining optimal airflow through your ventilation system.
Filter Class Comparison
Understanding filter efficiency helps you choose the right protection level for your indoor environment:
- M5 filters (ePM10 55%) capture medium-sized particles down to 10 μm, including pollen and coarse dust
- F7 filters (ePM1 70%) capture ultra-fine particles down to 0.3 μm, including combustion particles, bacteria, and fine dust
The F7+F7 set is recommended for environments where higher air quality is essential, such as urban areas, homes near busy roads, or households with allergy concerns.
Product Specifications
- Compatible models: Flexit Nordic CL2, CL3, CL4
- Dimensions: 290x234x48 mm
- Set contents: 2 F7 filters (ePM1 70%)
- Country of origin: Lithuania
- Frame material: Moisture-resistant double-layered laminated cardboard
- Certifications: ISO 16890, EN 779:2012
Why Choose These Filters
- Precise fit for Flexit Nordic CL2/CL3/CL4 recuperators
- Complete set with both filters included
- High-efficiency F7 filtration on both air streams
- Moisture-resistant construction for long service life
- Maintains stable airflow and system performance
- Manufactured to ISO 16890 and EN 779:2012 standards
- Cost-effective compatible replacement option
DEEP PLEAT Technology
These filters feature DEEP PLEAT construction that maximizes filtration surface area while maintaining compact dimensions. This advanced design delivers superior performance throughout the filter's service life.
- Maximum filtration surface area
- Consistent airflow performance
- Efficient fine particle capture
- Extended filter lifespan
ECO Green Materials
These filters are manufactured using ECO Green materials that balance environmental responsibility with reliable filtration performance. The moisture-resistant cardboard frame provides durability without compromising sustainability, making these filters a practical choice for environmentally conscious customers.
Recommended Replacement Interval
Replace your Nordic CL2/CL3/CL4 filters 2 to 3 times per year, depending on air quality and system usage. Regular filter replacement maintains cleaner indoor air, protects optimal airflow, and reduces strain on your HRV unit. Set a reminder every 4 to 6 months to check your filters and replace them when visibly dirty or when airflow decreases.
Frequently Asked Questions
How often should I replace these filters?
Replace filters every 4 to 6 months, or 2 to 3 times per year, depending on air quality conditions.
What is the difference between M5 and F7?
F7 filters capture ultra-fine particles down to 0.3 μm, while M5 filters capture medium-sized particles down to 10 μm.
Are these filters compatible with my unit?
These filters fit Flexit Nordic CL2, CL3, and CL4 recuperators with 290x234x48 mm filter slots.
How many filters are included in the set?
The set includes two F7 filters, providing complete filtration for both air streams in your recuperator.
Are these original or compatible replacement filters?
These are high-quality compatible replacement filters manufactured to meet the same specifications as original filters.
For more Flexit recuperator filters, browse our complete Flexit HRV filters collection. You can also explore our full range of recuperator filters for other ventilation system brands.
Buy Nordic CL2/CL3/CL4 Filter Set (290x234x48) online today. Fast EU delivery ensures your Flexit recuperator maintains peak performance.
| Filter Type / EN 779 | ISO 16890 | >10 µm | PM10 | PM2.5 | PM1 | Gas/LOI | Typical Pollutants |
|---|---|---|---|---|---|---|---|
| G1 | ISO Coarse | ~40% | <10% | ~0% | ~0% | Large dust: sand grains, textile fibers, carpet lint, plant residues, insect parts, etc. | |
| G2 | ISO Coarse | ~50% | <15% | ~0% | ~0% | Sawdust, hair, large fabric shreds, paint chips, surface rust particles. | |
| G3 | ISO Coarse | ~60% | <25% | ~5% | ~0% | Larger household dust, lint, animal hair, some airborne pollen. | |
| G4 | ISO Coarse | 65-75% | 25-35% | 10-15% | <5% | Larger pollen grains, soil and sand impurities, textile fibers. | |
| M5 | ISO ePM10 ≥50% | ~80% | 50–65% | 20–30% | 10–15% | Most pollen, mold spores, pet dander, typical house dust. | |
| M6 | ISO ePM10 (60–80%) | ~90% | 65–80% | 30–45% | 15–25% | Construction material dust, concrete and cement powders, ash and other friable material particles. | |
| F7 | ISO ePM2.5 (50–65%) | >90% | 75–90% | 50–65% | 30–45% | Some bacteria, smog and tobacco smoke particles, combustion product dust, mold spores, wildfire smoke. | |
| F8 | ISO ePM2.5 (65–80%) | >95% | 85-95% | 65–80% | 45-60% | Fine fungal spores, airborne pollutant aerosols and other fine solid particles. | |
| F9 | ISO ePM1 (80-95 %) | >95% | >95% | >90% | 80-95% | Diesel engine soot, some airborne viruses, transport and industrial fumes, very fine combustion particles, extremely fine dusts and secondary organic aerosols formed from chemical reactions in the atmosphere. |
Buy Nordic CL2/CL3/CL4 Filter Set (290x234x48) online at filters1.eu. This complete replacement filter set delivers reliable F7+F7 filtration for your Flexit Nordic CL2, CL3, or CL4 HRV unit, ensuring cleaner indoor air and efficient ventilation performance.
This filter set is specifically designed for Flexit Nordic CL2/CL3/CL4 recuperators. The set includes two F7 filters (ePM1 70% according to ISO 16890) that work together to filter both incoming fresh air and outgoing exhaust air. These compatible replacement filters provide reliable protection against fine particles while maintaining optimal airflow through your ventilation system.
Filter Class Comparison
Understanding filter efficiency helps you choose the right protection level for your indoor environment:
- M5 filters (ePM10 55%) capture medium-sized particles down to 10 μm, including pollen and coarse dust
- F7 filters (ePM1 70%) capture ultra-fine particles down to 0.3 μm, including combustion particles, bacteria, and fine dust
The F7+F7 set is recommended for environments where higher air quality is essential, such as urban areas, homes near busy roads, or households with allergy concerns.
Product Specifications
- Compatible models: Flexit Nordic CL2, CL3, CL4
- Dimensions: 290x234x48 mm
- Set contents: 2 F7 filters (ePM1 70%)
- Country of origin: Lithuania
- Frame material: Moisture-resistant double-layered laminated cardboard
- Certifications: ISO 16890, EN 779:2012
Why Choose These Filters
- Precise fit for Flexit Nordic CL2/CL3/CL4 recuperators
- Complete set with both filters included
- High-efficiency F7 filtration on both air streams
- Moisture-resistant construction for long service life
- Maintains stable airflow and system performance
- Manufactured to ISO 16890 and EN 779:2012 standards
- Cost-effective compatible replacement option
DEEP PLEAT Technology
These filters feature DEEP PLEAT construction that maximizes filtration surface area while maintaining compact dimensions. This advanced design delivers superior performance throughout the filter's service life.
- Maximum filtration surface area
- Consistent airflow performance
- Efficient fine particle capture
- Extended filter lifespan
ECO Green Materials
These filters are manufactured using ECO Green materials that balance environmental responsibility with reliable filtration performance. The moisture-resistant cardboard frame provides durability without compromising sustainability, making these filters a practical choice for environmentally conscious customers.
Recommended Replacement Interval
Replace your Nordic CL2/CL3/CL4 filters 2 to 3 times per year, depending on air quality and system usage. Regular filter replacement maintains cleaner indoor air, protects optimal airflow, and reduces strain on your HRV unit. Set a reminder every 4 to 6 months to check your filters and replace them when visibly dirty or when airflow decreases.
Frequently Asked Questions
How often should I replace these filters?
Replace filters every 4 to 6 months, or 2 to 3 times per year, depending on air quality conditions.
What is the difference between M5 and F7?
F7 filters capture ultra-fine particles down to 0.3 μm, while M5 filters capture medium-sized particles down to 10 μm.
Are these filters compatible with my unit?
These filters fit Flexit Nordic CL2, CL3, and CL4 recuperators with 290x234x48 mm filter slots.
How many filters are included in the set?
The set includes two F7 filters, providing complete filtration for both air streams in your recuperator.
Are these original or compatible replacement filters?
These are high-quality compatible replacement filters manufactured to meet the same specifications as original filters.
For more Flexit recuperator filters, browse our complete Flexit HRV filters collection. You can also explore our full range of recuperator filters for other ventilation system brands.
Buy Nordic CL2/CL3/CL4 Filter Set (290x234x48) online today. Fast EU delivery ensures your Flexit recuperator maintains peak performance.
| Filter Type / EN 779 | ISO 16890 | >10 µm | PM10 | PM2.5 | PM1 | Gas/LOI | Typical Pollutants |
|---|---|---|---|---|---|---|---|
| G1 | ISO Coarse | ~40% | <10% | ~0% | ~0% | Large dust: sand grains, textile fibers, carpet lint, plant residues, insect parts, etc. | |
| G2 | ISO Coarse | ~50% | <15% | ~0% | ~0% | Sawdust, hair, large fabric shreds, paint chips, surface rust particles. | |
| G3 | ISO Coarse | ~60% | <25% | ~5% | ~0% | Larger household dust, lint, animal hair, some airborne pollen. | |
| G4 | ISO Coarse | 65-75% | 25-35% | 10-15% | <5% | Larger pollen grains, soil and sand impurities, textile fibers. | |
| M5 | ISO ePM10 ≥50% | ~80% | 50–65% | 20–30% | 10–15% | Most pollen, mold spores, pet dander, typical house dust. | |
| M6 | ISO ePM10 (60–80%) | ~90% | 65–80% | 30–45% | 15–25% | Construction material dust, concrete and cement powders, ash and other friable material particles. | |
| F7 | ISO ePM2.5 (50–65%) | >90% | 75–90% | 50–65% | 30–45% | Some bacteria, smog and tobacco smoke particles, combustion product dust, mold spores, wildfire smoke. | |
| F8 | ISO ePM2.5 (65–80%) | >95% | 85-95% | 65–80% | 45-60% | Fine fungal spores, airborne pollutant aerosols and other fine solid particles. | |
| F9 | ISO ePM1 (80-95 %) | >95% | >95% | >90% | 80-95% | Diesel engine soot, some airborne viruses, transport and industrial fumes, very fine combustion particles, extremely fine dusts and secondary organic aerosols formed from chemical reactions in the atmosphere. |
