Suitable for Indoor Use: It's been tested and proven to the ultrasonic cool mist increases moisture in the air for easier breathing and a good night's sleep. Humidifiers help to relieve cough, cold and flu symptoms, nasal congestion, dry cough, sinus irritation, nose bleeds, amp; dry skin and hair, at the same time it can reduce the damage to the eyes and skin when placed in your bedroom. Can be used as a night light for bedroom. Aroma Diffuser Feature: There is a built-in aroma diffuser on the side of the unit. You can drop a few drops of your favorite aroma oil into the sponge in the pullout drawer to add and therapeutic aroma to the mist. Built-In Replaceable Filter: The built-in stone filter sits inside the humidifier cleansing all the water before it emits through the mist outlet. Kindly Note: /Tips: Recommend cleaning off the scale deposit in the water tank once a weekDo not add essential oil directly to the nozzle, base or water tank(it will cause corrosion and malfunction) Please select the proper mist level according to the air humidity, the 1-2 level mist is always better unless the air is rather dry. Parameter: Size: 300*210mmAccessories: Filter Capacity: 3LVoltage: 220/ 50HzPower: 25WBrand: Other Type: Humidifiers.