Due to its large room coverage and the Swiss engineering and construction, we consider the AOS U650 valuable for the money.
Demineralization cartridge to prevent lime scales and mineral residues.
Every two weeks the water tank and base should be cleaned and rinsed with water only.
See Boneco 7135 humidifier ratings, reviews and comparisons.
AS HU A250.99.
Includes 1 Hydro Cell and 1 demineralization cartridge.