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Zehnder ComfoAir 180 filter set G4+G4 (house brand)

Extract filter size: 235x124x27 mm
Supply filter size: 235x124x27 mm
Efficiency (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

Basic protects from basic stuff

Features

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

ISO standard

ISO standard is very important

Recyclable

Recyclable stuff. Very important

Usage 3-6 months

Change every 3-6 months.

27,90 €27,90 €

Price for set

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EN 779:2012 ISO 16890 - Average Efficiency
Filter class ePM₁ ePM₂,₅ ePM₁₀ Coarse (Particles)
G1 - - - -
G2 - - - 30% - 50%
G3 - - - 45% - 65%
G4 - - - 60% - 85%
M5 5% - 35% 10% - 45% 40% - 75% 80% - 95%
M6 10% - 40% 20% - 50% 60% - 80% >90%
F7 40% - 65% 65% - 75% 80% - 90% >95%
F8 65% - 90% 75% - 95% 90% - 100% >95%
F9 80% - 90% 85% - 95% 90% - 100% >95%

Replacing the Filters is Really Simple

Start by switching off the unit and opening the access panels. Remove the old filters, then insert the new ones. Close the panels and turn the MVHR unit back on.

The most important thing is to purchase the filter that matches your specific MVHR unit. You can do this by selecting your unit’s manufacturer in our catalogue, then choosing the exact model you have. The system will display compatible filters.

All that’s left is to order, replace, and enjoy clean, fresh air once again.

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Brand: Zehnder
Model: ComfoAir 180
Extract filter size: 235x124x27 mm
Supply filter size: 235x124x27 mm
Supply filter 2 size: 235x124x27 mm
Quality: House brand
Efficiency (EN779): G4+G4
Efficiency (ISO16890): Coarse 60%
Filter quantity in a set: 2 filters
Protection level: Basic
Manufacturer: EU factory
Technology: Z-line
Filter type: Panel
Frame: Synthetic
Product code: ZEHNDER180G4G4AL
Original product code: -

Frequently Asked Questions

Frequently asked questions ordered by popularity.

What is the difference between G4, M5, F7, etc. class filters? Plus icon Close icon

Filter class refers to the size and amount of particles a filter can trap. The higher the classification, the more effectively the filter removes particles from the air.

For incoming outdoor air, it’s generally recommended to use higher-class filters. However, we always suggest following the manufacturer’s guidance and using the specific filter sets outlined in your unit’s eco-commissioning documentation.

For more information, take a look at our comprehensive guide to filter classes for heat recovery units.

How often do I need to change the filters in my HRV? Plus icon Close icon
It is recommended to change the filters in your HRV every 3 to 6 months, depending on how dirty they become. However, the key signs that your filters need replacing include:
– An increase in noise from the HRV
– A reduction in the amount of air being supplied or extracted
Smart HRVs with an electronic control panel and display screen show the volume of air supplied and extracted per hour.
For example, if a Zehnder ComfoAir Q350 HRV in a 140m² home operates at an optimal rate of 190m³ per hour but drops to 150–170m³, the filters should be replaced.
How do I change the filter on my recuperator? Plus icon Close icon
Changing the filters is simple. Follow these steps:
1. Switch off the unit and open the dampers.
2. Remove the old filters and insert the new ones.
3. Close the dampers and restart the recuperator.
The most important thing is to ensure you buy the correct filter for your recuperator. To do this, select your recuperator’s manufacturer from our catalogue, then choose the specific model.
Our system will recommend the right filters for you. Simply place your order, replace the filter, and enjoy clean, fresh air once again.
How do I find the model name and number of my recuperator? Plus icon Close icon
There are several ways to identify the manufacturer and model of your recuperator:
1. Check the label on the unit itself, which usually displays the manufacturer and model number.
2. Contact your installer or the developer/builder of your property for details.
3. Measure the width, length, and height of the filter, then use these measurements to browse our online shop. Our system will suggest the correct recuperator filters for your unit.
4. If none of the above help, please get in touch via the chat box at the bottom right of the page, and we’ll be happy to assist you.

Still Have Questions?

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