Bought this for my father who has breathing difficulties and it did work well for the first couple of weeks. This unit has a problem with the float level for the water, and the unit ends up overflowing which also stops it from misting the water. Exchanged it for another one which only lasted two weeks and then it too started leaking. Decided on a different brand. Great idea, great looking unit, just needs to be refined. Sorry Beurer :-)