Wolf CWL-180 filters
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House brandExtract filter size: 290x136x5 mmSupply filter size: 290x136x5 mmFilter class (EN779): G3+G3Filter 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
House brandExtract filter size: 290x136x5 mmSupply filter size: 290x136x25 mmFilter class (EN779): G3+M6Filter 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
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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.
Which Wolf ventilation units does your filter catalogue cover?
We supply filter sets for Wolf's CWL Excellent range — CWL-180, CWL-300/400, CWL-F-150 and CWL-F/T-300 Excellent — the German manufacturer's main residential MVHR line, often installed alongside Wolf heating systems. The model name is printed on the unit's label.
Do smaller and larger Wolf CWL units use the same filter?
No — filter sizes depend on the model. The CWL-300 and CWL-400 Excellent share one set, while the CWL-180, CWL-F-150 and CWL-F/T-300 each take their own. Confirm your exact CWL variant on the unit's label before ordering, since the series name alone doesn't guarantee a matching size.
What filter class is standard for Wolf CWL units?
It depends on the model. For each CWL unit we stock two versions:
- CWL-300/400 Excellent — G3+G3, or G3+F7
- CWL-180 Excellent — G3+G3, or G3+M6
- CWL-F-150 and CWL-F/T-300 Excellent — G4+G4, or G4+F7
The version with the finer supply filter (F7 or M6) is the better choice for pollen and fine dust.
Does pairing a Wolf CWL unit with Wolf heating affect filter maintenance?
The ventilation and heating functions operate independently in terms of filter maintenance, but combined Wolf systems often run ventilation more consistently to support overall climate control, so it's worth checking CWL filters on the shorter end of the standard 3–6 month interval.
Can I order a full year’s supply of Wolf CWL filters together, especially if paired with Wolf heating equipment?
Yes, ordering a full year's worth of CWL filter sets in one purchase is common, particularly for households already managing a paired Wolf heating system on a similar service schedule. Multi-set orders are typically priced lower per filter than buying individually.
We live in the German-speaking part of Belgium — can we order Wolf CWL filters in German?
Yes. Belgium's German-speaking Community — around 79,000 people across nine municipalities centred on Eupen and St. Vith, in the east of the province of Liège — has German as its official language, and this shop is available in German alongside Dutch, French and English. Wolf is a German manufacturer, so the CWL model designations printed on your unit are exactly the ones we list: CWL-180, CWL-300/400, CWL-F-150 and CWL-F/T-300 Excellent. Delivery, returns and the €100 free-delivery threshold are the same as everywhere else in Belgium. Give the full model designation when ordering, since filter sizes differ across the CWL range.
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