Good look flower essential oil diffuser for valentine's day, anniversary, mom birthday, halloween and christmas gifts, fast 2nd day delivery. Large 500mL water tank keep running in more than 24 hours, auto shut-off once water runs out, this diffuser is worry-free, only refill one time every day and never worry about dry burning. What Benefts From Humidifiers: The new ultrasonic technology humidifiers will more effectively take effect of: Remove Dust: most part of dust around you can be took away by vapor, helps clean air in room; Absorb Bacterium: the floating germ in air can also be removed together with the dust, create healthy surroundings for babies and elder; Release Oxygen Anion: negative ions from the cool mist humidifier will promote lung's capacity, helps for better breath and have a better sleep; Balance Humidity: in cold season, appropriate humidity have various benefits, which moisturizes and relieve skin & hair, relieves allergies, congestion and cough, protect wood and leather furniture, reduce static electricity, and more. What Benefts From Aromatherapy Diffuser: Aromatherapy spa is the easiest and most effective way to help relief stress & anxiety in working or daily life, smell a kind of favorite fragrance, you will feel happy at once. Take this oil diffuser just enjoying your own aromatherapy spa in sleeping, entertraining, nursery, yoga, working or anything. Just fill this little device with a few drops of your favorite essential oils, it create a soothing environment and let you enjoy a moment of freedom, peace and relaxing, also covering the smell of pets or smoking. Specification CAPACITY: 500mL//Timer: 20 hrs(strong), 24hrs(normal)//POWER: Adapter, AC 100-240V, 50-60Hz//AUTO SHUT-OFF: Yes//MATERIAL: Ceramic, PP, BPA-Free//LED LIGHTS: 7 colors//NOISE: Weak <25db//SIZE: HxLxW 6.6x6.6inch, 1 pounds//WATTAGE: 12W//MIST BUTTON: Normal mist mode 24hrs(blue light) - Strong mist mode 20hrs(red light) - OFF, Hold the button 2 seconds for timer 1 hour(green light)//LIGHT BUTTON: Warm yellow color - 7 colors auto circle - Choose one color - OFF, Hold the button to fix on one color