Cool/Warm Mist & Customized Humidity Choose between warm and cool mist, whether you prefer the cozy 104 warm mist during chilly evenings or the refreshing cool mist on hot summer days, our cool and warm mist humidifier adapts to your needs effortlessly. The humidifier large room offer the flexibility to customize humidity levels ranging from 40% to 90%. Featuring low, medium, and high 3 mist settings it adapts to various room sizes and humidity requirements with ease. Large Capacity & Leak-Proof & Top-Fill Design Boasting generous 5.3Gal/20L capacity and max 2000mL/h mist output, experience convenience and efficiency with whole house humidifiers. With its top-filling design, say goodbye to pesky leaks and enjoy easy refills. The large capacity allows for continuous operation for up to 48 hours on a single refill.