JGmax 300ml Aromatherapy Essential Oil Diffuser, Coll Mist Ultrasonic Aroma Humidifier for Bedroom Study Yoga Spa Office Hotel, Ionizer with 4 Timer Settings & 7 Color Changing Lights 5 in 1 FUNCTIONS Aromatherapy Diffuser, Humidifier, Air Purifier, Ionizer, Night Light. 100% BPA FREE ADVANCED Ultrasonic Diffusing technology which produces vibrations at a frequency of 2.4 millions times per second breaks water and essential oils into extremely fine micro-particles without using heat (heat alters and destroys the properties of essential oils). ULTRASONIC diffusing feature ensures the integrity of the essential oils' beneficial molecular structure and allows for ease of healthy bodily absorption. Releases tiny droplets of water vapor which is highly beneficial for our skin and general well being and has been known to provide relief for symptoms of respiratory problems. Improve air quality and prevents damage from second hand smoke, stale air and allergens. It functions as an ionizer by releasing negative ions into the air which combat harmful positive ions. This provides many health benefits e.g. improves breathing, strengthen the immune system, help to lift your mood and relieve stress. Helps Purify and Humidify the Air and improves the quality of the air we breathe. Unit may also be used as a non-aromatherapy humidifier. Provides moisture for Dry Cough, Sinus Irritation, Dry Skin