Great Compatibility: WF2 humidifier filters replacement compatible with a wide range of Vicks, Kaz, Sunbeam, Honeywell, Enviracaire, and ReliOn humidifiers. Fits Vicks Starry Night cool mist humidifier and vaporizer models: V3100, V3500, V3600, V3700, V3800, V3850, V3850JUV, V3900, V3900JUV, and VEV400 series. Also fits Kaz 3020; Sunbeam SCM1118, SCM1119, SCM1120; Honeywell HCM300T, HCM315T, HCM350, HCM350B, HCM630, HCM631, HCM645, HCM650, HCM1000, HCM2000, HCM540 series, and HCM710. Replacement part number: WF2, PWF2. High Efficiency Performance: This WF2 humidifier filter for Vicks helps improve air quality by reducing mineral deposits and impurities from hard water, minimizing white dust while maintaining beneficial minerals. It adds moisture to the air to support better sleep, maintain skin hydration, and relieve discomfort caused by dry air. Superior Quality: The WF2 humidifier filter replacement features hot glue strips and a dense construction made from high-quality, environmentally friendly wood pulp paper. It uses an advanced low-density structure design, matching specifications and optimizing surface area for efficient moisture dispersion. Environmentally friendly material ensures optimal performance and delivers healthier, more comfortable air. Great Value Pack: Includes 4 WF2 humidifier filter replacements. For best results, replace filters every two months, depending on usage and water hardness. Before first use with Kaz models, soak the filter in water to ensure proper wicking performance. Material: Wood pulp paper Color: As shown Package Contents: 4 x filter Note: Color may vary slightly due to screen settings and lighting conditions. Slight measurement variations of ±1–3 cm may occur.