Demineralization Filter Cartridge helps reduce white dust, which is a deposit of minerals caused by hard water. For best results replace filter after every 30-40 fillings under normal use or 1-2 months or when the humidifier has not been operated for an extended period of time. This filter cartridge works with Crane Cow, Tiger, Cow, Dragon, Elephant, Frog, Penguin, Pig, and Duck Cool Mist Humidifiers.

• Helps maintain the cleanliness and effectiveness of your Crane Humidifier
• 8 fluid ounce bottle
• Removes lime scale, calcium scale and other mineral scale build up
• Extends life of humidifiers, evaporators and vaporizers
• Fits most Crane Humidifier Styles including Adorables, Drops, Droplets