500ml Essential Oil Diffuser eFlyer Ultrasonic Cool Mist Humidifier Home Air Humidifier with 10 Hours Continuous Mist, 7 Color LED Changes, Waterless Auto off for Spa,Baby Room,Bedroom 7 Colorful Lights7 led night lights change creates a romantice atmosphere.This essential oil diffuser also fills the space with a lovely fragrance that can lift the mood and relieve stress from stressful and tired day. 5in1 Functionsessential oil diffusers only offer one benefit, ours features provide such as Spa-quality Aromatherapy Diffuser, Humidifier, Night Light, Air Purifier, Ionizer, giving you unmatched value. Super Qulity Ultrasonic TechnologyDiffuser adopts 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,.Super quite when work to make you sleep well at night. Improves Air QualityAs a non-aromatherapy air purifier, this machine can vastly enhance a room's air quality! Whether from pollution, allergens, or secondhand smoke, better air quality can improve your breathing and reduce symptoms like dry cough. Up to Ten Hours of UseThanks to its whopping 500ml capacity, our essential oil diffuser lasts for up to ten hours of continuous use! When the time runs out, it will automatically shut itself off, allowing you to comfortably and safely sleep while it's on.