Filters

MVHR filters should be replaced once a year with checks every 3 to 6 months depending on the pollution in the air, the amount of dust and use of the unit.  Keeping the filters clean will assist with keeping the unit quiet and will help maintain low energy usage.

  • For Extract within an MVHR system a coarse dust filter of G4/EU4 grade should be used.
  • For Intake within an MVHR system, it is recommended to use a finer filter of F7/EU7 grade.

Zehnder Filter housing NOx

NOx filters have been designed to ensure they;

  • Provide the crucial levels of filtration required
  • Minimise impact on the airflow performance of the system are long lasting, helping reduce maintenance cycles and costszehnder nox filter

Features and Benefits

  • High grade NOx filtration to help meet the requirements of Air Quality Planning Regulations
  • Five options to suit all MVHR models – including Zehnder ComfoAir Q and Greenwood Vireo units
  • Sized to minimise additional energy consumption of the system
  • Long file span between 2-5 years
  • Unique Feature to Zehnder – NOx Filters – Integrated Sight Glass for easy and quick maintenance review on the site.
    The filter cartridge is a makeup of a series of G3 and Carbon Filters.  The Carbon filter has colour cell grading to show when it needs replacing.



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