Absolutely, this is easily adjustable! On the digital display on top of the altitude generator you can control the oxygen percentage between 20.9% (sea level) and 9.3% (6400m altitude). To be able to check this, every generator is ours rental service  supplied as standard with an oxygen meter.  That way you can check yourself again if the correct height is set.
In fact, it is just as simple as operating your heating 😉
