People with home ventilation systems often wonder what a MVHR-filter is and why it is needed in their system. Tops filters explains easily and quickly what a MVHR filter is, how it improves air quality in the home, and exactly how an MVHR-unit works.
How does a MVHR-filter work?
A MVHR-filter is a filter that filters dust particles from both the outgoing and incoming air in a home. This filter is placed in an MVHR-unit, which stands for "Heat Recovery" unit. An MVHR unit is an environmentally friendly ventilation system used in the home. MVHR-filters can only be used in a ventilation system that matches the filters.
What is an MVHR-unit?
An MVHR unit is a ventilation system that filters and reuses the hot air in a home, resulting in significantly high heat recovery. The MVHR unit consists of fans, a heat exchanger and, of course, the MVHR-filters. Through the supply channel, the MVHR unit draws in cold outside air. This air is filtered and then passes the heat exchanger. Here, the cold outside air is heated by the warm inside air. The heated and filtered air is then blown into the house. Thus, the air in the house is filtered and heated in a sustainable manner.
In summer, the cold outside air does not need to be heated. Therefore, the heat exchanger in the ventilation system can be switched off. This is made possible by a bypass in the unit (not all MVHR-units have this function). The cold outside air is still filtered through a MVHR-filter, but no longer passes the heat exchanger. Thus, the air in the house is filtered and cooled in a sustainable way.
Some MVHR-units are equipped with an automatic bypass. Based on the temperature, the MVHR unit itself decides whether the outside air should be heated.
What are the advantages of an MVHR-filter?
- Improving air quality
- Promotion of a healthy living environment
- Energy-efficient use of the available heat
- Extends the service life of the MVHR-unit