? 【Ultrasonic Humidifier & Aroma diffuser】This humidifiers can rinse the air, release oxy-gen and filter impurities to moisturize your skin and improve your sleep. Add essential oils into the diffuser to make your room emit a clean and fresh fragrance. ? 【Large Capacity】4L large-capacity water tank allows for 12 to 30 hours of continuous use without adding water frequently. ? 【Visible Tank & Power-off Protection】Transparent water tank can see the water level clearly. Humidifier will shut off automatically at low water level to prevent damage to the device. ? 【Easy to Refill & Clean】The top filling design offer a more convenient way to add water. Wide opening design allows for easy cleaning. 【Dual Nozzle】360°rotating nozzle ensures even humidity distribution. Extra retractable hose nozzle can offer humidity for greenhouse, plant or animal. ? 【Ultra Quiet & Adjustable Mist】Super quiet operation that let you rest assured to sleep soundly. 360°rotary switch for adjusting the amount of mist according to your need.