Introduce our 6-Liter OasisMist Smart Warm & Cool Mist Humidifier. With VortexMist Technology, it gives you a fast and even, healthy and safe, smart and easy humidification experience. Also, distilled/ purified water is preferred for your health. Features: ? Warm & Cool Mist Humidifier -- Faster & Healthier Humidification ? Smart Home, Smart Life -- Remote Control, Schedule, Timer, Plant Care, Voice Control ? A Large Water Tank of 6L, Covers up to 430 ft² ? Lasts Up to 60 Hours ? Easy Top-Fill Design ? Essential Oil Tray ? Dual 360 Rotating Nozzle ? Easy Handle Design ? Convenient LED Display Specifications: Product Dimensions: 10.8 x 6.0 x 13.9in / 27.4 x 15.2 x 35.2 cm Product Weight: 5.5 lb / 2.5 kg Whisper-Quiet Operation: As low as 26dB Effective Range: 215–430 ft² / 20–40 m² Toubleshooting 1.LEVOIT Water Filter Sponge. Why to use: Capture and filter fine impurities and particles, to improve humidifying efficiency in a healthier way. When to change: Generally lasts 1 month depending on hardness of water. Where to buy: Please search B09ZY9N6PD on Amazon. 2. LEVOIT 10 Pack Humidifier Mineral Absorption Pads. Why to use: Prevent Stubborn Mineral Buildup and Increase Humidification Efficiency. When to change: Generally last 2-4 weeks (Depending on the hardness of the water). Where to buy: Please search B09X9PLMYC or Levoit humidifier replacement filter. 3.LEVOIT Aroma Pads Why you need it: To help emit a stronger fragrance and protect the fragrance box. When to change: We suggest the aroma pads be changed every 4 weeks for better performance. Where to buy: Please search B0B8MD45FB or Levoit aroma pads for more information.