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 model 3020; Sunbeam models SCM1118, SCM1119, SCM1120; Honeywell models HCM300T, HCM315T, HCM350, HCM350B, HCM630, HCM631, HCM645, HCM650, HCM1000, HCM2000, HCM540 series, and HCM710. Replacement part number: WF2, PWF2. High Efficiency Performance: Our WF2 humidifier filter for Vicks helps improve air quality by reducing mineral deposits and impurities from hard water, minimizing white dust. While humidifying the air, it adds moisture to support better sleep, maintain skin hydration, and help relieve discomfort caused by dry air. Superior Quality: This WF2 humidifier filter replacement for Vicks features hot glue strips and a dense construction made from high-quality, environmentally friendly filter paper. It uses an advanced low-density structure design, matching original specifications for optimal moisture output and airflow. Environmentally friendly material ensures consistent performance and contributes to healthier, more comfortable indoor air. Great Value Pack: Includes 4 WF2 humidifier filter replacements. Recommended maintenance: clean once per month and replace every 2 months depending on usage and water hardness. Warm tip: Before first use with Kaz models, soak the filter in water to ensure proper wicking and continuous humidification. Material: Wood pulp paper Color: As shown Package Contents: 4 x filter Note: Light reflection and display settings may cause slight color variation between the image and the actual product. Measurement tolerance: ±1–3 cm.