How frequently do the filters need to be changed?

The filter should be replaced depending on the actual filter consumption. This is measured in all aeropur devices by means of the differential pressure, on average twice a year, and is indicated when the red LED shines on the front panel.

However, the actual filter consumption level depends on the individual dust load on site. The filters should be replaced as soon as the red LED light shines, otherwise the performance of the device will be impaired significantly. However, a delayed filter exchange does not mean that previously  filtered dirt in a functional filter will be released again and returned to the room.

Even if the red LED does not shine during the space of 12 months, we recommend replacing all filters once a year for reasons of hygiene.

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