90 Hours Running Time: The humidifier has a 2.6Gals/10L tank, which can run for up to 90 hours with at once fill. Perfect humidifier for your large living room and bedroom. Top-Fill Design: Designed for convenience, the top-fill lid allows for fills, and the large opening makes cleaning easy. The top tank is separated from the water pipe so that when you pick up the top, no water will spill. Quick Humidity: The large humidifier provides a stable and powerful water mist output, with a maximum output of 400ml /hour, ensuring the perfect humidification tailored for you! User Customization: This humidifier features a temperature and humidity sensor, 45%-75% humidity setting, an 12-hour timer setting, 4 spray settings, a 360 adjustable nozzle. Whisper-Quiet: Large room humidifier has ULTRA-QT TECH that can emit safe moisture, and runs quietly to help facilitate gentle sleep in bedrooms for kids and adults.