Wolf Filters
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House brandExtract filter size: 245x177x5 mmSupply filter size: 245x177x5 mmFilter class (EN779): G4+G4Filter 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: 245x177x5 mmSupply filter size: 234x166x20 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
House brandExtract filter size: 175x143x5 mmSupply filter size: 175x143x5 mmFilter class (EN779): G4+G4Filter 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: 175x143x5 mmSupply filter size: 164x132x20 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
House brandExtract filter size: 525x185x5 mmSupply filter size: 525x185x5 mmFilter class (EN779): G4+G4Filter 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: 525x185x5 mmSupply filter size: 525x185x24 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
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
1-8 of 8Discover our range of replacement filters for your Wolf ventilation unit, all made in the EU! Our selection includes high-performance filter sets combining G4 (ISO Coarse 60%), G3 (ISO Coarse 50%), M6 (ISO ePM10 50%) and F7 (ISO ePM1 55%) filters, designed to protect your system and improve indoor air quality. All our options are quality-tested and fully compatible with Wolf MVHR units.
Model compatibility
This category includes filter sets compatible with all major Wolf MVHR ventilation units, including:
- CWL series
To ensure the right fit, it’s important to know the exact model of your ventilation unit, as different models require different filters. You’ll find helpful tips on identifying your device in the FAQ section.
Filter types and what they protect against
Our replacement filter sets for Wolf units are designed to ensure optimal air quality and system performance by combining two filters with different filtration roles. Available filter options:
- G4 filters (ISO Coarse 60%) and G3 (ISO Coarse 50%) on the extract or supply side: ideal for capturing larger particles like soil particles, large pollen grains, plant debris, insect wings, sawdust, sand and textile lint.
- M6 (ISO ePM10 50%) and F7 filters (ePM1 55%) on the supply side: high-efficiency filters that capture very fine particles, including pollen, pet dander, bacteria, smog, tobacco smoke particles, combustion dust, spores, and wildfire smoke particles.
Usage and maintenance
To keep your MVHR system running efficiently and your indoor air clean, we recommend replacing the filters every 3–6 months. However, this depends on your environment, if you have pets, or nearby construction.
To make the process easy, we provide step-by-step replacement instructions for each filter model. You can find them under the “How to change” tab on every product page.
Manufacturing quality you can trust
Our carefully developed house brand filters are made in the European Union by certified manufacturers. They are produced with high-quality materials, under strict ISO 16890 standards to ensure high filtration performance and reliability.
Customer Reviews
Clear and easy to navigate site, no risk of accidentally ordering the incorrect product (which can be tricky with filters). Fast and efficient delivery.
Phil SmithTrustpilot review
Got the filters I wanted at a price I was happy with. Seems fine to me.CharlieTrustpilot review
The experience was seamless, they communicated well, and I got what I ordered quickly. I also found a product that I didn’t know existed, and ordered it as well. All in all, an excellent experience!Steve SchaferTrustpilot review
Top, fast shipment, good productTim SoenenTrustpilot review
Get what I ordered, cheaper than in my country (post service included).MatejTrustpilot review
Fast and easy to orderPeter PostruznikTrustpilot review
Everything was ok but it took like a week to receive the order when it appeared as completed in the status. Maybe more reliable information on the delivery process would be appreciated.Toni AlmansaTrustpilot review
Most important: No fake shop 🙂 (i wos looking for an impressum and country of operating headquarters). Summary: Fast delivery. Moderate price. Good Quality. Quick and easy purchase. Good online-Shop. I miss Paying with Paypal.Hans-dieter TinhofTrustpilot review
Very good product and good priceCARLOS MARTINSTrustpilot review
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.
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 Wolf CWL-300 units use the same filter as larger CWL models, or a different size?
No — filter dimensions scale with unit capacity across the CWL range, so a CWL-300 takes a smaller filter than larger CWL-400 or CWL-2000 models. Confirm your exact CWL variant on the front panel 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?
CWL units typically use a two-stage setup on the supply side, consistent with German indoor air quality guidance:
- M5 coarse filter
- F7 (ePM1) fine filter
Both grades fit the same filter housing without modification.
Which Wolf ventilation units does your filter catalogue cover?
We supply filters for Wolf's CWL series, the German manufacturer's primary residential MVHR range, often installed alongside Wolf heating systems. The CWL model variant is printed on the unit's front panel label.
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