Brand new, unopened. Overview of the BRUNO Ultrasonic Humidifier, Personal Humidifier 500ml, LED Light, Aroma Compatible, Compact Desktop Humidifier, Charcoal Gray BDE071-CGY: Humidification levels: 3 stages + intermittent mode The humidification level changes each time you press the operation switch. LOW (approx. 20mL/h) MID (approx. 40mL/h) HIGH (approx. 60mL/h) + MIN (approx. 10mL/h intermittent) LED light equipped The brightness of the light changes each time you press the light switch during operation. Water level sensor auto-stop function + OFF timer (2 hours) When the water level in the water tank becomes low (approx. 70mL), the light flashes for 10 seconds and the power turns OFF. Press and hold the operation switch for 3 seconds to activate the OFF timer. MIN (intermittent) mode: Approximately 50 hours This is an operating mode in which the humidifier repeatedly humidifies for a certain period of time, then temporarily stops, and then resumes humidification. 3 seconds of mist emission, 3 seconds of pause