Air-O-Swiss 30879 Replacement De-Mineralization Cartridge #A7531

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.

• AOS 7531
• For Air-O-Swiss ultrasonic humidifiers
• Prevents the release of minerals in the air that develop into white dust
• The plastic housing of the demineralization cartridge is treated with silver
• Ag+ ionic silver technology
• This inhibits microbial growth on the surface of the cartridge to maximize filter life
• Recommended replacing every 2-3 months based on water hardness.

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Returns accepted within 30 days by mail. Return shipping is paid by the customer. See our refund policy.