Information about this product 3 in 1 Aromatherapy DiffuserHumidifierNight Light: Diffuser, Air Humidifier and Flame Effect Light make up our 200ml Multifunctional Air Humidifier. Add a few drops of your favorite essential oil to relieve fatigue and relax, while improving air quality and keeping you dry. Timer and Auto Shutoff Function: Our flame diffuser has 3 timer setting modes: 1 hour3 hours5 hours, you can set the timer to spray and light mode according to your needs. The diffuser automatically shuts off when there is no more water, which makes it very safe and reliable. Ultra-quiet: With unique noise Reduction technology, the noise of the diffuser can be REDuced to 40 decibels. It is a silent partner around you, so you don't have to worry about affecting your work, study or sleep. Do not open the cap when using the diffuser to avoid water leakage. Make sure to add water below the maximum limit. If the water exceeds the maximum limit, it may re-enter the main unit and damage the circuit board. The heat dissipation vents are not waterproof, do not let water enter, otherwise there will be a circuit.