Filter

  • Wolf CWL-F-T-300 Excellent filter set G4+F7 (house brand) 245x177x5 + 234x166x20
    House brand
    (0)
    Extract filter size: 245x177x5 mm
    Supply filter size: 234x166x20 mm
    Filter class (EN779): G4+F7
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    Pollen and mold

    Captures pollen, mold spores, and other allergens

    Smog and bacteria

    Protects against allergens and urban pollution

    17,90 €17,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 54 points
  • Wolf CWL-F-150 Excellent filter set G4+G4 (house brand) 175x143x5
    House brand
    (0)
    Extract filter size: 175x143x5 mm
    Supply filter size: 175x143x5 mm
    Filter class (EN779): G4+G4
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    8,90 €8,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 27 points
  • Wolf CWL-180 filter set G3+M6 (house brand) 290x136x5 + 290x136x25
    House brand
    (0)
    Extract filter size: 290x136x5 mm
    Supply filter size: 290x136x25 mm
    Filter class (EN779): G3+M6
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    Pollen and mold

    Captures pollen, mold spores, and other allergens

    Smog and bacteria

    Protects against allergens and urban pollution

    17,90 €17,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 54 points
  • Wolf CWL-F-T-300 Excellent filter set G4+G4 (house brand) 245x177x5
    House brand
    (0)
    Extract filter size: 245x177x5 mm
    Supply filter size: 245x177x5 mm
    Filter class (EN779): G4+G4
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    9,90 €9,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 30 points
  • Wolf CWL-F-150 Excellent filter set G4+F7 (house brand) 175x143x5 + 164x132x20
    House brand
    (0)
    Extract filter size: 175x143x5 mm
    Supply filter size: 164x132x20 mm
    Filter class (EN779): G4+F7
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    Pollen and mold

    Captures pollen, mold spores, and other allergens

    Smog and bacteria

    Protects against allergens and urban pollution

    25,91 €25,91 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 78 points
  • Wolf CWL-300-400 Excellent filter set G3+G3 (house brand) 525x185x5
    House brand
    (0)
    Extract filter size: 525x185x5 mm
    Supply filter size: 525x185x5 mm
    Filter class (EN779): G4+G4
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    12,90 €12,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 39 points
  • Wolf CWL-300-400 Excellent filter set G3+F7 (house brand) 525x185x5 + 525x185x24
    House brand
    (0)
    Extract filter size: 525x185x5 mm
    Supply filter size: 525x185x24 mm
    Filter class (EN779): G4+F7
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    Pollen and mold

    Captures pollen, mold spores, and other allergens

    Smog and bacteria

    Protects against allergens and urban pollution

    24,90 €24,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 75 points
  • Wolf CWL-180 filter set G3+G3 (house brand) 290x136x5
    House brand
    (0)
    Extract filter size: 290x136x5 mm
    Supply filter size: 290x136x5 mm
    Filter class (EN779): G3+G3
    Filter quantity in a set: 2 filters
    Protection level

    Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.

    Basic

    General dust and particle filtration

    8,90 €8,90 €

    Price for set

    Dispatch time: 1-3 days
    1
    Cashback reward  - 
    Earn 27 points
1-8 of 8

Discover 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

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.

Which Wolf ventilation units does your filter catalogue cover?

Plus icon Close icon

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.

What filter class is standard for Wolf CWL units?

Plus icon Close icon

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?

Plus icon Close icon

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.

Do smaller and larger Wolf CWL units use the same filter?

Plus icon Close icon

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.

Can I order a full year’s supply of Wolf CWL filters together, especially if paired with Wolf heating equipment?

Plus icon Close icon

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.

Wolf is a German manufacturer and our CWL unit is on a service contract — can we still buy filters here?

Plus icon Close icon

Yes. Filters are a consumable, not a structural part, so buying them separately does not conflict with a maintenance contract or affect the warranty on the heat exchanger, fans or electronics — that warranty covers manufacturing defects, not which brand of filter you fit. What varies is what your particular contract includes: some cover the inspection visit only and expect filters to be supplied, others include them in the price. It is worth checking, because paying for filters twice is a common and avoidable annoyance. If your technician is happy to fit filters you have bought, ordering ahead of the scheduled visit works well.

Still Have Questions?

Support details to capture customers that might be on the fence.

Contact Us Now