Used once for operational check. Introducing the new! Hybrid Heating x Multi-Disinfection to thoroughly eliminate 99% of bacteria! This next-generation model surpasses conventional humidifiers! It combines the energy efficiency of ultrasonic humidifiers with the powerful disinfection capabilities of heating humidifiers, allowing you to switch between warm and cool mist with a single touch! Furthermore, it's equipped with a multi-disinfection system featuring light irradiation + antibacterial filter + heated disinfection release. It removes 99.9% of germs, delivering clean and safe mist throughout your room. In heating mode, the approximately 50°C warm mist eliminates viruses and bacteria in the air, making it highly effective for preventing colds and influenza in winter! *Warm mist begins to emit approximately 5 minutes after turning on heating mode, reaching its maximum temperature in about 20 minutes. The time required may vary depending on the ambient temperature. Energy-saving operation is also possible with the heating mode off. 5L Ultra-Large Capacity & Amazing Continuous Humidification for up to 25 Hours! Say goodbye to troublesome refills! The large 5L tank allows for up to 25 hours of continuous operation on low mode and 15 hours on high mode! You don't have to worry about running out of water while you sleep or go out. With the 2-WAY water filling method (simply pour from the top or remove the tank), refilling is easy in any situation. The transparent water tank design makes the remaining water level clearly visible, preventing you from accidentally running out of water.