Ivation Humidifier Filter &ndash; Replacement Filter Cool and Warm Mist Humidifier- 100% Synthetic Fiber Ion Exchange Filter Resists Mold, Algae, Bacteria & Mildew Ion Exchange Design Maximizes Moisture Output with Amazing Wicking Capacity Original Ivation Filter is Built for Adaptability; Handles Cool & Warm Mist Production Synthetic Fibers Capture Rust and Mineral Deposits, Preventing their Aerosolizatio Premium Construction Enables Up to 180 Full Days of Filtration (Depending on Use) Only OEM Filter Replacement for Ivation Ultrasonic Cool and Warm Mist Humidifier