Zehnder ComfoSpot 50 Filters
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OriginalExtract filter size: 182x123x20 mmSupply filter size: 182x123x20 mmFilter class (EN779): G4+F7Filter quantity in a set: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldCaptures pollen, mold spores, and other allergens
Smog and bacteriaProtects against allergens and urban pollution
1-1 of 1Zehnder ComfoSpot 50 filters: 182x123x20mm
ComfoSpot is Zehnder’s compact range, designed for single rooms rather than whole-house ventilation like the ComfoAir series — part of the wider Zehnder filter selection. The ComfoSpot 50 filter set measures 182x123x20mm.
- G4+F7 (original) — genuine Zehnder set with G4 extract filter and F7 pollen supply filter
Why single-room units still need regular filter changes
Even compact, single-room ventilation units rely on clean filters to maintain airflow and avoid drawing extra power from a clogged fan. We recommend checking your filters every 3–6 months to ensure quiet operation and efficient heat recovery.
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Need Help? Start Here.
We’ve gathered answers to the most common questions about our products and services. If you can’t find an answer here, please contact us directly.
Is there an activated carbon filter for Zehnder ComfoAir Q units?
Yes. We stock an original Zehnder activated carbon set for the ComfoAir Q350, Q450, Q600 and E350 (G4+G4 AC). The carbon layer absorbs odours drawn in with the outdoor air — traffic fumes, wood smoke or a neighbour's barbecue — while the G4 media still filters coarse dust. It replaces your standard set, so use it when odours are the main problem and switch back to G4+F7 when fine dust and pollen matter more.
Do Zehnder ComfoAir Q350, Q450 and Q600 units use the same filter size?
Yes. The ComfoAir Q350, Q450 and Q600 — and the ComfoAir E350 — all take the same filter set, available as G4+F7, G4+G4 or an activated carbon version. Older ComfoAir models (70, 160, 180, 200, standard 300/375 and 350/500/550) each take a different size, so check your model on the front panel before ordering.
Why do Zehnder ComfoAir filters need more frequent checks in high-pollen seasons?
Because ComfoAir's F7-class supply filter is specifically designed to capture fine airborne particles including pollen, it can load up faster during spring and early summer than during the rest of the year. Checking filters monthly during peak pollen season, even within the standard 3–6 month replacement window, helps maintain steady airflow and allergy protection.
How do I find the correct replacement filter for my Zehnder ComfoAir unit?
Find the exact model on the unit's front panel — for example ComfoAir Q350, Q450 or Q600, ComfoAir 350/500/550, ComfoD 350/450/550 or Zehnder EVO. That is the fastest way to match the correct filter set in our catalogue. If the label is missing, measuring the extract and supply filters directly identifies the right size just as reliably.
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