Yes, of course, but Digitec itself does not offer filters. But they can be ordered via Galaxus.
Xiaomi Mi Air Purifier FilterImportant to know: a filter like this lasts much longer here than in Asia (where the devices were developed). So please do not replace the filter after 180 days. Vacuum the surface dust, reinsert the filter and reset it (for the sake of the environment). I have already been using my filter for 2 years and initially made the mistake of replacing a completely new one after 180 days. It doesn't have to be, because we don't have much air pollution in Switzerland.