NINISEI Ultrasonic Atomizing Diffuser/Humidifier, Large CapacIty Humidifier Aromatherapy,Sustainable Fog 12-20 Hours ,Atomization Machine Household and Office Use,Waterless Auto Shut-off Safe use: Ultrasonic atomization is fundamentally different from the traditional heating and burning hot fog, It is not damaged Ingredients ofany essential oil, No second pollution. With automatic closing off function,When the water level is lower than the safety water level, The humidifierwill stop working and enter the protected mode, Yellow light flashing as awarning. Energy saving and practical: Low power consumption, External transformer,Harmless to the human body, Aromatherapy and humidification at the same time. Cosmetic instrument: Can add the appropriate amount of skin care water,essential oils and other makeup fluid for facial moisturizing beauty. Air humidifier: The summer heat and winter are gone, is a good partner of air conditioning. Sterilizing device: Add a small amount of vinegar or alcohol, Can effectively reduce the spread of bacteria, to protect the health of your family.