Neutralize minerals in the water and reduce "white dust"
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Honeywell Demineralization Cartridges were designed to neutralize minerals in the water of Honeywell Removable Top Fill Cool Mist Humidifiers. Honeywell Demineralization Cartridges can be instrumental in reducing the amount of "white dust" and the capturing of minerals. It is recommended that owners replace cartridges every 20-30 fillings. This package contains one replacement cartridge and is compatible with HUL570B and HUL570W humidifiers.