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 - Deerma F300 air humidifier has 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 home humidifier will automatically turn off when it runs out of water preventing damage to the unit and keeping you safe. Ease of Use - The product does not have LED indicator, fill the humidifier with Sufficient amount of water and switch it on using the knob for it to function.