Greenwood HRV95 / Zehnder ComfoAir 350 / ComfoAir 550 Replacement Filter Set

What are filters and why should I change them in my MVHR Heat Recovery Filters?
The filters in your MVHR Heat Recovery system are vital to your indoor air quality help protect the unit and prolong its life. There are two filters inside the unit - one for extract air and one for supply air. 

As air moves through the system, dust, debris, and grease starts to build up and the filters protect the motors and heat exchanger, whilst cleansing the air entering your home.
Filters for MVHR Heat Recovery System are recommended to be replaced every 6 months, but this is dependent on your outdoor and indoor air quality.  Units and filters in higher pollution areas may need replacing as little as every 3 months. 
MVHR Heat Recovery is a whole house ventilation system designed for the modern energy efficient home.  It supply’s fresh filtered air and at the same time extracts stale, moisture, and pollutant laden air, recovering up to 95% of the heat that would otherwise have been lost. Your MVHR system helps reduce your heating bill and maintains your comfort all year round – plus no condensation or mould!
An annual service is also recommended for your MVHR Heat Recovery System to clean and sanitise motors, the heat exchanger, air valves, ducting and to complete a full airflow test. Book an MVHR service

How Do I change my  MVHR Filters?

Basic Guidance:
•    Power off your heat recovery unit  
•    If required, remove the front panel from the heat recovery unit, alternatively, pull the visible filter handles 
•    Remove the heat recovery filters from the heat recovery unit by pulling the tab
•    Insert the new heat recovery filters into the heat recovery unit – make sure you place the correct filter on the supply and extrac sides of your unit
•    Replace the front panel or filter handles
•    Power up the MVHR Heat Recovery unit
•    Reset the filter/maintenance light