New regulations MVHR filters: ISO16890
Filter class G4, M6, F9, and so on. For those who have a MVHR system, these terms are probably not unfamiliar. Since August 2018, something has changed: the filter standard EN779 has been replaced by ISO16890. This means that previously mentioned terms will give way to new, more specific designations. In this blog, we would like to explain the differences.
Comparison between EN779:2012 versus ISO16890 regulations
The major difference between EN779 (old) and ISO16890 (new) is the scope of the test. Previously, it only tested how many dust particles of 0.4 microns were stopped by the filter. Not very realistic, as fine dust comes in different sizes. The new filter standard ISO16890 was created to ensure that you get a better picture of a filter's performance. From now on, both the quantity of large dust particles and the quantity of PM1, PM2.5 and PM10 fine dust are measured. All MVHR filters from Ventilatieland are tested according to the ISO16890 seal of approval and, moreover, this filter standard is international. So from now on, it is much easier to compare filters from different international brands.
New values
The new ISO16890 regulations require the following values to be specified per filter:
- ISO Coarse - percentage of coarse dust retained by the filter
- ISO ePM1 - percentage of fine dust ( < 1 µm ) retained by the filter
- ISO ePM2.5 - percentage of fine dust ( < 2.5 µm ) retained by the filter
- ISO ePM10 - percentage of fine dust ( < 10 µm ) retained by the filter
Instead of categorising a filter under a particular filter class, it will henceforth detail what percentage of which dust particles are retained by the filter. This means that fixed designations are no longer used, but each class is assigned a certain percentage. If a filter scores at least 50% on a given ePM, the corresponding designation can be used to indicate which 'filter class' it falls under.
Compare filter classes
The quality and filter class of a filter is not always clear, and often the old EN779 standard is still used. Therefore, we have here an overview of the different filter classes and the typical values for such a filter in the new IS16890 standard. Please note that this is an indication and may vary from brand to brand.
Purchasing MVHR filters
Are you looking for new filters for your MVHR? Then take a look at our wide range of MVHR filters. It is recommended to replace the MVHR filters on a regular basis, preferably once every six months. View all MVHR filters by brand:
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