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*Helps remove minerals & pollutants
*For use in cool mist humidifier 890-WGN
*For Duracraft DCM-200, Honeywell HCM-890
*Replacement Filter
*Walgreens Cool Moisture Humidifier
100% Satisfaction guaranteed with all Walgreens products or your money back. 100% satisfaction guaranteedTo maintain optimum performance for your humidifier, replace your filter every 1 to 2 months depending on water quality and usage.© 2013 Walgreen Co.