Compatible alternative filter set for Komfovent DOMEKT R400V C6M (with C6M controller). Filter size 428 × 231 × 46 mm, with filter class F7 / ePM1 55% + M5 / ePM10 55% combination for efficient, quiet and energy‑saving operation.
Alternative filter set for Komfovent DOMEKT R400V C6M
High-quality alternative filter set for the Komfovent DOMEKT R400V C6M ventilation unit (with C6M controller).
The set includes 2 filters: 1 × F7 / ePM1 and 1 × M5 / ePM10. The filters match the original dimensions and
filtration classes, ensuring clean indoor air and energy-efficient, quiet operation of the system.
Very good indoor air quality in apartments and houses
Stable, quiet and energy-efficient operation of the DOMEKT R400V C6M unit
Exact 428 × 231 × 46 mm fit – prevents air bypassing the filters
Protects the heat exchanger and fans from dust and dirt
Set includes both necessary filters: 1 × F7 / ePM1 for supply and 1 × M5 / ePM10 for extract
Cost-effective solution compared to original filters while maintaining the required filtration class
Use and recommendations
Recommended residential combination:
F7 / ePM1 55% as the supply air filter (outdoor air) and
M5 / ePM10 55% as the extract air filter
Typical replacement interval: 1–2 times per year in residential applications
Replace more often in high-traffic, dusty or polluted areas, or when the unit shows a filter alarm
During installation, follow the direction of airflow – the arrows on the filter must point towards the heat exchanger (rotor)
Make sure the filter sits straight and tightly in the frame, without gaps around the edges
Important compatibility information
This alternative filter set is suitable for:
DOMEKT R400V C6M (with C6M controller, front door with black plastic locks)
It is not suitable for the following models:
DOMEKT R400V (older version with metal locks opened with a key)
DOMEKT REGO 400
These older models use different filter sizes and frames, so the filters on this page will not fit correctly.
Always check the exact model name of your unit and the dimensions of the existing filters before ordering.
ADVANTAGES OF FILTERS24:
Certified safety: Filters have passed tests according to REACH for over 250 harmful chemical substances.
Proven efficiency: Performance of filter verified in an independent laboratory according to ISO 16890 standard.
Free from carcinogens: Filters tested for TOF / PFAS particles and confirmed to be completely safe.
Filter material: Modern, synthetic two-layer filtering material which provides less air resistance (and therefore less energy consumption), high filtration efficiency levels (in the form of dust absorption), and a long filter life (involving low pressure drops).
Durable design: Built with a strong frame that resists deformation under challenging conditions. Material is glued to the frame and prevents air leakage.
Competitive pricing: Affordable rates and a large inventory of ready-to-ship filter sets.
Filter Classification by Particle Size
Filter Class
Particle Size Range
Typical Particles Captured
ISO Coarse (G3,G4)
>10 µm
Sand, fluff, flying seeds, fine hair, insects
ISO ePM10 (M5)
≤ 10 µm
Pollen, stone dust, agricultural dust
ISO ePM2.5 (F7)
≤ 2.5 µm
Bacteria, fungi, mold spores, fine pollen
ISO ePM1 (F7)
≤ 1 µm
Viruses and bacteria, nanoparticles, soot, sea salt, oil mist
WHY CHANGE FILTERS OVER TIME?
The producers recommend that filters be changes at least once or twice a year, at the beginning and end of the heating season. The interval also depends on the location and the intensity of ventilation.
Old and dirty filters lead to a pressure drop in the ventilation system and, as a result, the volume of fresh air inflow decreases, which worsens the indoor climate.
An old, dirty filter can contribute to the spread of mould in the ventilation system. (especially in humid climates), which can be a health hazard.
The new filter has the best air permeability levels and, as a result, savings can be made in electricity costs for the fan unit.
STORAGE AND DISPOSAL:
For long-term storage, keep in a dry place. Used filters can be disposed of with regular household waste.
