Air-O-Swiss Demineralization Cartridge

Air-O-Swiss Demineralization Cartridge


If you have hard water, there is nothing more annoying than breathing in white mineral dust from your humidifier and later trying to remove the hard scale buildup that accumulates inside the humidifier. The Air-O-Swiss 7531 Demineralization Cartridge solves these problems by removing minerals from water before they are released into the air.

Use of the Demineralization Cartridge also prevents lime scale and other buildup from forming on the interior of any Air-O-Swiss Ultrasonic Humidifier, including the Air-O-Swiss 7135 Ultrasonic Digital Humidifier sold by Allergy Control Products. The Demineralization Cartridge acts invisibly and odorlessly to remove water-based minerals, while its silver-treated exterior inhibits microbial growth.

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Extra Info

For use in Air-O-Swiss Ultrasonic Dehumidifiers, Model Nos. AOS 7131, AOS 7133, AOS 7135, AOS 7142, AOS 7144, AOS 7145, AOS 7147 and the AOS U600/AOS U650.

Soak the Demineralization Cartridge in a water bath for 24 hours before use - the resin has to absorb water to reach high performance.


Replace cartridge every 2-3 months, or more frequently if you have very hard water.


  • For use in Air-O-Swiss Ultrasonic Humidifiers
  • Removes lime scale and other mineral residues from hard water
  • Prevents the release of minerals and white dust into humidified air
  • Prevents lime scale buildup inside the humidifier
  • Ionic silver treatment on exterior inhibits microbial growth on cartridge
  • Replace every 2-3 months, or more often with very hard water