All In One Function: Can be used as humidifier??aromatherapy diffuser?? air purifier or nightlight which has 7 changing mood lights?? enabling your room living and energetic.</br>Large Capacity: Holds up to 300ml of water and produces up to 20ml of moisture per hour?? it can run up to 7 hours of continuous output?? adding several drops of oils into it and it will fill your space with lovely fragrance.</br>Quiet Ultrasonic Technology: Adopts ultrasonic technology which does not generate noise when your are working?? sleeping?? studying?? doing yoga or enjoying SPA.</br>Auto Shut Off Function: When the wate