Features: nn–5L Large Capacity & Dry Protection ultrasonic humidifier has 2 adjustable levels of output, cool mist and a maximum output of 350 mL/h. The humidifier for bedroom has a 5 liter 1.32 gallon tank, lasts up to 24 hours without refill and automatically shuts off when the tank is empty. This humidifier uses durable material and elegant design, making it natural to join into your furniture.n–Top Fill Humidifer & Easy to CleanAir humidifiers for large room have a top-filling with a wide opening design that allows you to pour water directly into the tank, or take the tank out and add it under the tap, saving you a lot of hassle. To clean the reservoir more carefully, simply lift it up from the base.