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FLEXIT Filters

Flexit Filters for All Series

Flexit filters are an essential part of every Flexit ventilation system, helping to ensure cleaner supply air, reliable unit performance, and long-term system efficiency. Properly selected filters protect the heat exchanger, fans, and ductwork from dust, pollen, and other airborne contaminants.


Wide Product Range

Our range includes a wide selection of Flexit filters for various ventilation unit models. We offer high-quality compatible filters manufactured in the European Union using premium filtration media. They provide efficient air filtration, excellent airflow, and reliable performance in everyday operation.


Filter Classes

  • G4 – basic protection against larger dust particles, lint, and other coarse contaminants.
  • M5 – provides improved filtration of finer dust particles and is ideal for everyday use in areas with lower air pollution.
  • F7 – efficiently captures fine particles, pollen, and urban air pollution in accordance with the ISO 16890 standard.
  • F7/AC – activated carbon filter designed to help reduce unpleasant odours and urban air pollution.

For areas with lower air pollution, G4 or M5 filters are an excellent choice. If you live in a city, near busy roads, or suffer from allergies, F7 or F7/AC filters are recommended for their higher efficiency in capturing fine airborne particles.


Original and Compatible Solutions

Our compatible Flexit filters are manufactured using high-quality filtration media and provide reliable filtration performance. They are an excellent alternative to original filters, helping maintain high indoor air quality and efficient ventilation system operation.


How to Choose the Right Flexit Filters?

When selecting Flexit filters, it is important to know your ventilation unit model or the dimensions of your existing filter. Choosing the correct filter ensures a perfect fit, optimal airflow, and maximum filtration efficiency.

If you are unsure which filter you need, we recommend checking your unit model or comparing the dimensions of your current filter before ordering.


Why Choose Flexit Filters from CleanFilter?

CleanFilter offers a wide range of Flexit filters at competitive prices. Our filters are manufactured in the European Union and provide reliable performance, helping to maintain cleaner indoor air and efficient operation of your ventilation system.


Regular Maintenance and Long-Term Benefits

Flexit filters should be replaced every 4–6 months, depending on air quality and usage conditions. Regular filter replacement helps maintain clean indoor air, reduces the workload on the ventilation system, and extends the service life of your unit.


Contact Us

If you have any questions about choosing the right Flexit filters, our team will be happy to help you find the best solution for your ventilation unit.

There are 24 products.

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FLEXIT C2 F7+F7 Filter set (Efficient)

FLEXIT C2 F7+F7 Filter set (Efficient)

Dimensions: 293x226x48
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 21.50 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT C2
Filter dimensions293x226x48
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 114606
  • 114606
FLEXIT EcoNordic F7+F7 Filter set (Efficient)

FLEXIT EcoNordic F7+F7 Filter set (Efficient)

Dimensions: 269x242x95
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 23.97 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unit
  • FLEXIT EcoNordic
  • FLEXIT EcoNordic W4
Filter dimensions269x242x95
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 117079
  • 117079
FLEXIT K2.1 F7+F7 Filter set (Efficient)

FLEXIT K2.1 F7+F7 Filter set (Efficient)

Dimensions: 130x335x50
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 29.73 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT K2.1
Filter dimensions130x335x50
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 12767
  • 12767
FLEXIT L4X/S4X (VG400) F7+G4+G3 Filter set (Efficient)

FLEXIT L4X/S4X (VG400) F7+G4+G3 Filter set (Efficient)

Dimensions: 257x220x48
Class (EN779): F7+G4+G3
Class (ISO16890): ePM1 70%
Price 26.76 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT L4X/S4X (VG400)
Filter dimensions
  • 257x220x48
  • 257x220x20
Class EN779F7+G4+G3
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters3
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 12318
  • 12318
FLEXIT L7X/S7X (VG700) F7+G4 filtrų komplektas (Efektyvus)

FLEXIT L7X/S7X (VG700) F7+G4 Filter set (Efficient)

Dimensions: 394x223x20
Class (EN779): F7+G4
Class (ISO16890): ePM1 60%
Price 22.32 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT L7X/S7X (VG700)
Filter dimensions
  • 394x223x20
  • 394x223x250/5
Class EN779F7+G4
Class ISO16890ePM1 60%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 12313
  • 12313
FLEXIT Nordic CL2 / CL3 /...

FLEXIT Nordic CL2 / CL3 / CL4 F7/AC activated carbon filter (Smog &...

Dimensions: 290x230x48
Class (EN779): F7/AC
Class (ISO16890): ePM2.5 60%
Price 23.96 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unit
  • FLEXIT Nordic CL2
  • FLEXIT Nordic CL3
  • FLEXIT Nordic CL4
Filter dimensions290x230x48
Class EN779F7/AC
Class ISO16890ePM2.5 60%
Protection levelParticles and odors: fine particles, dust, pollen, mold spores, combustion particles, volatile particles, NOx, O3 gases.
Quantity of filters1
Advantages
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
  • Absorbs volatile particles (odors) and harmful gases as NOx, O3, etc.
FLEXIT Nordic CL2/CL3/CL4 F7+F7 Filter set (Efficient)

FLEXIT Nordic CL2/CL3/CL4 F7+F7 Filter set (Efficient)

Dimensions: 290x230x48
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 21.28 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unit
  • FLEXIT Nordic CL2
  • FLEXIT Nordic CL3
  • FLEXIT Nordic CL4
Filter dimensions290x230x48
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 117746
  • 117746
FLEXIT Nordic KS3 F7+F7 Filter set (Efficient)

FLEXIT Nordic KS3 F7+F7 Filter set (Efficient)

Dimensions: 275x133x96
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 25.71 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT Nordic KS3
Filter dimensions275x133x96
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number120526
FLEXIT Nordic L6 SW F7+F7 Filter set (Efficient)

FLEXIT Nordic L6 SW F7+F7 Filter set (Efficient)

Dimensions: 460x218x96
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 40.56 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT Nordic L6 SW
Filter dimensions460x218x96
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number121423
FLEXIT Nordic S2/S3 1xF7/AC...

FLEXIT Nordic S2/S3 1xF7/AC Activated carbon filter (Odor)

Dimensions: 166x272x48
Class (EN779): F7/AC
Class (ISO16890): ePM2.5 60%
Price 15.43 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unit
  • FLEXIT Nordic S2
  • FLEXIT Nordic S3
Filter dimensions166x272x48
Class EN779F7/AC
Class ISO16890ePM2.5 60%
Protection levelParticles and odors: fine particles, dust, pollen, mold spores, combustion particles, volatile particles, NOx, O3 gases.
Quantity of filters1
Advantages
  • Lower running costs – lower filter price, lower energy use, and usually longer time between replacements than higher-efficiency filters.
  • Made in the EU – reliable quality and strict safety standards
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
  • Absorbs volatile particles (odors) and harmful gases as NOx, O3, etc.
Manufacturer product number
  • 116597
  • 116597
Flexit Nordic S2 S3 filter F7

FLEXIT Nordic S2/S3 F7+F7 Filter set (Efficient)

Dimensions: 166x272x48
Class (EN779): F7+F7
Class (ISO16890): ePM1 70%
Price 14.82 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unit
  • FLEXIT Nordic S2
  • FLEXIT Nordic S3
Filter dimensions166x272x48
Class EN779F7+F7
Class ISO16890ePM1 70%
Protection levelHigh: fine particles, dust, pollen, mold spores, combustion particles, smog particles, insecticide dust.
Quantity of filters2
Advantages
  • Maximum protection – ePM1 70% removes up to 40% more smog, pollen and fine dust than standard filters (50–60%).
  • Made in the EU – reliable quality and strict safety standards
  • German filtration material – hygienic (VDI 6022) and PFAS-free, for cleaner and safer air
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
Manufacturer product number
  • 116597
  • 116597
FLEXIT Nordic S4 1xF7/AC Aktyvintos anglies filtras (kvapų)

FLEXIT Nordic S4 1xF7/AC Activated carbon filter (Odor)

Dimensions: 247x365x31
Class (EN779): F7/AC
Class (ISO16890): ePM2.5 60%
Price 22.46 €

Manufacturer of MVHRFlexit
ManufacturerCleanFilter
Air handling unitFLEXIT Nordic S4
Filter dimensions247x365x31
Class EN779F7/AC
Class ISO16890ePM2.5 60%
Protection levelParticles and odors: fine particles, dust, pollen, mold spores, combustion particles, volatile particles, NOx, O3 gases.
Quantity of filters1
Advantages
  • Lower running costs – lower filter price, lower energy use, and usually longer time between replacements than higher-efficiency filters.
  • Made in the EU – reliable quality and strict safety standards
  • ISO 16890 tested – performance verified by an accredited laboratory in Germany
  • Absorbs volatile particles (odors) and harmful gases as NOx, O3, etc.
Manufacturer product number
  • 116177
  • 116177