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Extract filter size: 214x186x18 mmSupply filter size: 214x186x48 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection level
Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 500x170x48 mmSupply filter size: 340x170x48 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 264x182x18 mmSupply filter size: 264x182x18 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 630x198x40 mmSupply filter size: 630x198x40 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 500x196x40 mmSupply filter size: 500x196x40 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 320x235x48 mmSupply filter size: 320x235x48 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 260x220x48 mmSupply filter size: 260x220x48 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 536x220x40 mmSupply filter size: 536x220x40 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 436x196x40 mmSupply filter size: 436x196x40 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 400x196x40 mmSupply filter size: 400x196x40 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
Extract filter size: 284x103x60 mmSupply filter size: 284x103x60 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicBasic protects from basic stuff
Smog and pollenSmog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen, Smog and pollen
1-11 of 11Frequently Asked Questions
Frequently asked questions ordered by popularity.
What is the difference between G4, M5, F7, etc. class filters?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?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 extractedSmart 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?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?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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