[2-in-1 Humidifier & Diffuser] : 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! [Top Fill Design] : Remove the lid to add water or essential oil directly into the water tank, making refills easier than ever. [Easy to Clean] : A big 200mm wide opening of water tank makes it easy to clean, ensures healthy mist for you. [360° Rotatable Mist Outlet] : Adjust the mist outlet direction at any time you want. [Auto Shut Off] : The humidifier will automatically turn off when it runs out of water preventing damage to the unit and keeping you safe.