Demineralization Cartridge (DMC) for Ultrasonics - When properly installed and maintained, this cartridge effectively prevents the release of minerals in the air.
- Please exchange cartridge every 2-3 months, hard water usage may require more frequent replacement.
- Cartridge granules may be refilled with AOS 7533 3-Pack Refill Granules.
BONECO/AIR-O-SWISS offers two options for replacing the demineralization cartridge: Replace the whole cartridge with a new part (model AOS 7531) or use replacement granules (model AOS 7533 Refill Granules 3-Pack) to extend the life of the cartridge. Made in Korea Please Note: This item has been built to U.S. electronics specifications and may need additional modifications or converters to be used in countries other than the U.S. and Canada. | 
