For use with Crane Germ Defense Humidifier models:
Contains one filter cartridge.
- Purifies Water
- Helps reduce minerals in the water
- Reduces "White Dust"
This optional Crane Demineralization Cartridge HS-3812 for Germ Defense humidifiers helps reduce white dust, which is a deposit of minerals caused by use of hard water in your humidifier. For best results replace as necessary (every one to two months, or 30 to 40 fillings under normal use), or when the humidifier has not been run for an extended period of time.
Before first use, soak cartridge for 30 minutes in separate container. Place pre-soaked demineralization filter cartridge into humidifier water basin.