You wear out the oil differently in in different rooms. In kitchens and living rooms where pedestrian traffic is high, a maintenance interval can be once a year for the first time. In bedrooms and other spaces where pedestrian traffic is not as high, maintenance intervals can be even less frequent. As the wood is saturated with maintenance oil over the years, the opportunities for maintenance are sparse.
It is important to use the right cleaning agent on all oiled floors. No degreasing agents (this includes soap) and preferably a PH-neutral detergent. Follow the care instructions from Bjelin for cleaning hard wax oiled floors. The service life of these floors depends entirely on how the floor is maintained.