LAMAGIA 100ml Essential Oil Diffuser, Aromatherapy Ultrasonic Cool Mist Aroma Diffusser Air Humidifier with Color LED Light Changing, Mist Mode Adjustment and Waterless Auto Shut-off Function Combination of Essential Oil Diffuser and Humidifier: Diffuses essential oils with aroma coverage; Refreshes and moisturizes the air in rooms, making it easier to breathe and relieving a variety of conditions including cold, nasal congestion, allergies, asthma and more. 2.4MHZ Ultrasonic Frequency: Use Ultrasonic waves to instantly vaporize water and essential oil in the tank, producing a cool and dry fragrant mist which can be much more easily been absorbed by skin, better humidifying effects. Whisper-like ultrasonic operation: less than 35 dB noise level, perfect for use in a nursery, office, spa, yoga studio, or in any room of your home, deodorizing air of strong tobacco, pet odors, and more. LED light Modes: 7 color-changing LED light Mode, weak constant light mode and strong constant light mode for choosing, creating a relaxing ambiance and soft night glow while ionizer feature helps lift mood and relieve stress. 3 Working Modes: Intermittent Mist(30 seconds on and then 30 seconds off), Continuous Mist(spraying till water runs out) and Light Only mode. With Waterless auto shut-off function, reliable and safe.