Electric Air Aromatherapy Essential Oil Diffuser Ultrasonic Humidifier Purifier This ultrasonic aromatherapy diffuser with 1.7MHz Vibration frequency, can help purify and improve air quality, ease tension, reduce illnesses enhance immunity, protect against secondhand smoke pollution and dispel the unusual smell. With the concept of health and its exquisite design, it is a smart choice to decorate the room, or choose as a gift to family or friends. -Ultrasonic diffuser breaks water and aroma solution into extremely fine micro-particles/mist and emission into the air - Small in size, easy cleaning and being portable - Low power, but strong humidity. - Quiet operation ensures a quiet environment - Good agent to clean the air. Remove the dust & peculiar smell. -As the diffuser is covered by the upper cap, no LED light will be seen. - Automatically stop when out of water, safe and reliable. -2 modes for mist adjustment: once press "MIST" button, interval mist mode(Diffuse for 3 Minutes, stop for 1 minute); twice press, continuous mist mode - Original import transducer, corrosion resistance of essential oil - External transformer, low energy consumption, harmless to human body. - For Aromatherapy: Just add 3-5 drops of essential oil - Have a good mood and a better sleep, Relieves depress after a whole day work -Keep water-soluble essential oil 100% natural without burning or heating and automatic water-load protection -The mist is room temperature, may get warmer after a period of usage. The cold water used in the diffuser may also get warmer after a period of usage, this is normal.Electric Air Aromatherapy Essential Oil Diffuser Ultrasonic Humidifier Purifier