Does not work
The air purifier works perfectly and I am very satisfied with it. The only drawback is the very high price for the replacement filter, so only 3 stars.
The device is ok. However, the big deal is the supplied German/French instruction manual in approx. 4-point font, which can only be deciphered with a strong magnifying glass. I had to scan them in high resolution and print them out on A/4. Migros customer service should have done the same for their children.