ã2-in-1 Humidifier & Diffuserã: This F300 vaporizer acts as both a humidifier and a diffuser, so you can add essential oil with the humidifier's mist to spread your favorite fragrances throughout the room. NO OIL TRAY NEEDED! ADD ESSENTIAL OIL DIRECTLY INTO THE WATER TANK! ãTop Fill Designã: Remove the lid to add water or essential oil directly into the water tank, making refills easier than ever. ãEasy to Cleanã: A big 200mm wide opening of water tank makes it easy to clean, ensures healthy mist for you. ã360Â° Rotatable Mist Outletã: Adjust the mist outlet direction at any time you want. ãAuto Shut Offã: The humidifier will automatically turn off when it runs out of water preventing damage to the unit and keeping you safe.