Ultrasonic Aroma Diffuser Humidifier Aromatherapy Purifier Mute Negative Ion (Grain)Large 600ml water capacity that can continue use up to 12 21 hours each time Humidifier: Moisturizes and refreshes the quality of air we breathe. This feature is important as it humidifies the hot and dry air in the room during summer and winter when heating is switched on Romantic color changing LED light with independent light control It is perfectly suitable for use in Bedroom, study, office, living room, bathroom, yoga room, Spa shop, fitness