6L water tank: Equipped with a large 6L water tank, the top fill humidifiers for bedroom can be used in rooms of up to 538 ft2 and run for up to 50 hours on the lowest mist setting. When running low on water, the cool mist humidifier will automatically stop misting and a red light indicator will let you know it is time to refill the tank. 2. Powerful output: At up to 300ml/h, the ultra-fine cold mist can quickly hydrate the dry air and help alleviate congestion, coughs, and dry skin. Rotate the 360° nozzle to target a specific location for quicker results. Suitable for indoor use in bedrooms, large rooms, nurseries, and offices. 3. Quiet Operation: The humidifiers for bedroom with a minimum noise level of 26dB and an optional soft blue night light, there won t be any noise or light that interrupts your sleep. 4.Simple maintenance: The top filling design is made with ease and simplicity in mind. The water tank is easily disassembled and reassembled. With a large opening and an included cleaning brush, cleaning couldn t be easier. (Note: Do not soak the base in water) 5. Aromatherapy: Add essential oils a cotton pad and place it into the oil tank compartment for a heightened experience. 6. Adjustable knob and 360° nozzle: Adjust the mist output to your ideal humidity level using the control knob and target the mist in the desired direction by rotating the nozzle.