kuhnrene3 years ago000How long does the HEPA filter last before it needs to be replaced? Or can it also be washed?Show in original language (German)patrick0huf3 years ago000In our case, on average 1/2 to 3/4 year. Depending on the air pollution and the duration of use of the unit (24 h), washing out is not possible, filters are disposable products to eliminate the pollutants.Show in original language (German)Comment