Flexit NORDIC S2 / S3 heat recovery unit filter set F7 / F7 (272×166×48 mm)
€57.40 Incl. VAT
Filter set F7 / F7 for Flexit Nordic S2 and Nordic S3 heat recovery units. Includes ISO ePM1 55% supply and extract filters for cleaner indoor air and reliable heat recovery unit protection. Helps remove bacteria, smog, tobacco smoke particles, combustion dust and other airborne pollutants.
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Filter set F7/F7 Nordic S2/S3 for Flexit Nordic S2 and Nordic S3 heat recovery units. Designed to maintain clean indoor air, protect the heat recovery unit, and ensure reliable, energy-efficient ventilation performance.
• Filter set including 2 × ISO ePM1 55% (F7) supply and extract filters (272 × 166 × 48 mm).
• Designed for Flexit Nordic S2 and Flexit Nordic S3 heat recovery units.
• Helps maintain a healthy indoor climate with clean, fresh, filtered air while supporting efficient ventilation system performance.
FILTER CLASS According to ISO 16890-1:2016 / EN779:
• Supply filter: ISO ePM1 55% (F7) – improves indoor air quality by filtering incoming outdoor air.
• Extract filter: ISO ePM1 55% (F7) – protects the heat recovery unit by reducing dust accumulation inside the ventilation system.
FILTRATION PERFORMANCE
• Filtration efficiency: ISO ePM1 55%.
• Captures approximately 55% of PM1 fine particles, including bacteria, smog, tobacco smoke particles, combustion dust, spores, wildfire particles, and other fine airborne pollutants.
The filter set performs two essential functions:
• Supply filter – cleans incoming outdoor air to improve indoor air quality and create a healthier living environment.
• Extract filter – protects the heat recovery unit by reducing dust build-up, helping maintain efficient airflow and extending system lifespan.
Regular filter replacement every 3–6 months helps maintain optimal ventilation efficiency, lower energy consumption, and consistent indoor air quality.
KEY FEATURES & BENEFITS
- F7 / F7 filter set for Flexit Nordic S2 and Nordic S3 heat recovery units
- Includes 2 × ISO ePM1 55% (F7) supply and extract filters
- Filter dimensions: 272 × 166 × 48 mm
- Captures approximately 55% of PM1 fine particles
- Helps remove bacteria, smog, tobacco smoke particles, combustion dust, spores, wildfire particles, and other airborne pollutants
- Supply filter improves indoor air quality
- Extract filter protects the heat recovery unit from dust accumulation
- Supports efficient airflow and heat recovery performance
- Filter material: glass fibre
- Frame material: cardboard
- Recommended replacement interval: 3–6 months
- Made in Sweden
| Weight | 1.3 kg |
|---|---|
| Dimensions | 320 × 290 × 100 mm |



