Extremely easy to operate using a control knob Practical reminder indicator for refilling water Includes Ionic Silver Stick® (antibacterial) and water filter A250 AQUA PRO for pure humidification without residue Easy handling and cleaning (including a cleaning brush) Subtle water illumination (can be switched off as desired) Fragrance container for use with essential oils Elegant desing with Red Dot Design Award Winner Removable water tank with handle for easy refilling High-quality components with long service life