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Extract filter size: 473x242x46 mmSupply filter size: 473x242x46 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection level
Filter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 400x130x20 mmSupply filter size: 400x130x20 mmEfficiency (EN779): F7+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 506x177x15 mmSupply filter size: 506x177x15 mmEfficiency (EN779): G4+G4Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Extract filter size: 455x240x10 mmSupply filter size: 455x240x10 mmEfficiency (EN779): G4Quantity: 10 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Extract filter size: 600x228x170/8 mmSupply filter size: 600x228x170/8 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 174x168x45 mmSupply filter size: 174x168x45 mmEfficiency (EN779): M5+M5Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldExtract filter size: 500x198x14 mmSupply filter size: 500x198x14 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 500x198x14 mmSupply filter size: 500x198x14 mmEfficiency (EN779): G4+G4Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Extract filter size: 500x198x14 mmSupply filter size: 500x198x14 mmEfficiency (EN779): G4+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 500x198x14 mmSupply filter size: 500x198x14 mmEfficiency (EN779): G4+G4Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Extract filter size: 330x300x92 mmSupply filter size: 330x300x92 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 296x231x46 mmSupply filter size: 296x231x46 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 325x230x48 mmSupply filter size: 325x230x48 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 305x248x92 mmSupply filter size: 305x248x92 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
Extract filter size: 269x236x46 mmSupply filter size: 269x236x46 mmEfficiency (EN779): M5+F7Quantity: 2 filtersProtection levelFilter protection level indicates efficiency in blocking particles or contaminants, varying by standard and application.
BasicGeneral dust and particle filtration
Pollen and moldSmog and bacteriaProtects against allergens and urban pollution
1-15 of 432Frequently Asked Questions
Frequently asked questions ordered by popularity.
How do I find the model name and number of my HRV?There are several ways to identify the manufacturer and model of your recuperator:- Check the label on the unit itself, which usually displays the manufacturer and model number.
- Contact your installer or the developer/builder of your property for details.
- 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.
- 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.
How do I change the filter on my recuperator?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 often do I need to change the filters in my HRV?It is recommended to change the filters in your MVHR 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 MVHR- A reduction in the amount of air being supplied or extractedSmart MVHRs 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 MVHR in a 140m² home operates at an optimal rate of 190m³ per hour but drops to 150–170m³, the filters should be replaced.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.
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