Question about Venta LP60

There is nothing in the operating instructions. But under 'venta - questions and answers' I found the following:
'WHAT CARE MEASURES ARE REQUIRED FOR THE VENTA AIR PURIFIER?
REQUIRED? DO THE FILTERS NEED TO BE REPLACED?
The Venta LP60, LP60 WIFI air purifier filters out pollutants using
VENTAcel filters from the air. The filter service life depends on
the number of operating hours and the air quality in the room. In
Generally, if the air purifier is used continuously for 24 hours a day, the filters must be
per day, the filters must be replaced after one year (change indicator appears in the interactive touch screen).
l indicator appears in the interactive touch display). It is also
it is advisable to clean the pre-filter from time to time. Cleaning of the
The pre-filter should be cleaned every 1-2 months or as required.