What has changed:
Until now, ventilation filters have only been tested and classified with particles in the size of 0.4 μm. These are now tested with the 3 fine dust sizes 0.3 to 1 μm / 1 to 2.5 μm / 2.5 to 10 μm and grit. This is a much more realistic test than before.
At the filters and article numbers nothing changes, only in the remark the new standard is listed additionally.
According to ISO 16890, the filters are divided into four groups:
ePM1 0,3 - 1 µm
ePM2.5 1 - 2,5 µm
ePM10 2,5 - 10 µm
ISO Coarse Coarse dust
To be classified in one of the classes, it must have a minimum efficiency of 50%. So if a filter retains at least 50% of the particles down to 1 μm, it will get the class ePM1 50%. The efficiency is then increased in 5% increments. (50%, 55%, 60% ...)
If a filter retains less than 50% of the ePM10 particles, it falls into the coarse dust class ISO Coarse.
Eurovent certifies the performance ratings of air-conditioning and refrigeration products according to European and international standards. The objective is to build up customer confidence by levelling the competitive playing field for all manufacturers and by increasing the integrity and accuracy of the industrial performance ratings.
The end users will have confidence that equipment will operate in accordance with the design specifications, the energy cost will be correctly stated and therefore the supplied product will correspond to the initial investment.
For manufacturers, the Eurovent Certification programmes offer the ground for a fair competition, on equal terms and based on comparable data. Finally, the image and integrity of the whole industry will be improved and a better confidence between manufacturers and specifiers will be established.
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