This Air-O-Swiss demineralization cartridge is designed to remove minerals from the water as it enters the air. Works in combination with the Air-O-Swiss brand humidifier, replace the cartridge every two to three months.
- Replacement demineralization cartridge
- For use with Air-O-Swiss models 7142, 7135, 7133 and 7131
- Replace every 23 mos.
- Features: Lasts Up To 3 Months,