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
1-2 of 2The Wolf CWL-180 is the smallest unit in the CWL range, taking a compact 290x136mm filter set.
Wolf CWL-180 Filter Set
- G3+G3 (standard) – 290x136x5mm on both sides. From €8.90.
- G3+M6 (upgrade) – 290x136x5mm extract, 290x136x25mm supply. From €18.90.
G3+G3 Standard vs. G3+M6 Upgrade
G3+G3 is the everyday choice, filtering coarse dust, pollen grains and plant debris on both the extract and supply sides. The G3+M6 upgrade keeps the same G3 extract filter but swaps the supply filter for M6, adding protection against finer pollen, pet dander and mould spores – the CWL-180’s upgrade path tops out at M6 rather than F7, since the unit’s supply slot is sized for that class.
A Compact Filter for a Compact Unit
At 290x136mm, the CWL-180 filter is noticeably smaller than the other three CWL models, reflecting the unit’s lower airflow rating. Don’t assume a filter from a larger CWL model will fit – always order by your confirmed 290x136mm size.
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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.
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.
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.
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.
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.
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.
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