Holtop MVHR filters
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House brandExtract filter size: 770x180x5 mmSupply filter size: 770x180x5 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: 670x180x5 mmSupply filter size: 670x180x5 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: 466x180x5 mmSupply filter size: 466x180x5 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
1-3 of 3Discover our range of replacement filters for your Holtop ventilation unit, all made in the EU! Our selection includes high-performance G3 (ISO Coarse 50%) filters sets, designed to protect your system and improve indoor air quality. All our options are quality-tested and fully compatible with Holtop MVHR units. Model compatibility
This category includes filter sets compatible with all major Holtop MVHR ventilation units, including:
- Eco-Smart series
- XHBQ 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 Holtop units are designed to ensure optimal air quality and system performance through dual G3 filtration:
- G3 filters (ISO Coarse 50%) on the extract and supply side: ideal for capturing larger particles like household dust, textile lint, animal hair, large pollen grains and similar debris.
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.
What filter class is standard for Holtop-built units?
The Holtop filter sets we stock — for the Eco-Smart ERV 2.5, Eco-Smart ERV 3.5 and XHBQ-D5 — are G3+G3: a coarse G3 filter on both the supply and extract side that protects the heat exchanger core from dust. They are made in our house brand to the original dimensions.
I can’t find “Holtop” printed on my unit — why?
Holtop is one of the largest OEM manufacturers of heat recovery cores and units globally, and its components are used inside many private-label and regional MVHR brands sold under different names. If your unit's core or fan assembly carries a Holtop part number even though the outer casing shows another brand, our Holtop filter listings will likely be the correct match.
How do I measure my filter if the exact Holtop model isn’t listed?
Remove the filter and measure three dimensions in millimetres:
- Length
- Width
- Depth
Holtop's filter housings are produced in a relatively standardised set of sizes across their unit range, so an exact size match will almost always identify the correct replacement even without the specific model name.
If my unit is a private-label brand built on a Holtop core, will using Holtop-spec filters affect my warranty?
No — using a correctly sized filter matching your unit's Holtop-spec filtration class doesn't affect the warranty on the heat exchanger core or fan assembly, since those warranties cover manufacturing defects rather than which filter brand you use. The requirement is almost always about correct sizing and filter class, not the label on the box.
My unit carries a German brand name but you list the filter under Holtop — how can that be?
Holtop builds ventilation units that a number of European suppliers sell under their own names, so a unit with a German brand on the front can have a Holtop core and Holtop filter dimensions inside. That is normal and it does not mean anything is wrong with your unit. To find the right filter, ignore the name on the casing and work from the physical evidence: the dimensions of the old filter in millimetres, the filter class printed on its frame, and a photo of the type plate. With those three things we can match the filter regardless of which brand sold the unit.
How often should I change the filters in a Holtop Eco-Smart or XHBQ unit?
Check the filters every 3 months and replace them at least every 6 months. Coarse G3 filters hold a lot of dust before airflow drops, so don't wait for them to look completely grey — if the unit gets louder or the air feels stuffier, change the set straight away. Vacuuming or washing G3 filters is not a substitute for replacement, as it damages the media.
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