The humidifier features a user-friendly top-fill design, allowing you to effortlessly add water by simply lifting the top cover. After removing the cover, you can easily access and clean the water tank to maintain hygiene.3-in-1 Functionality: The humidifier serves as a humidifier, diffuser, and night light all in one. Add essential oils directly into the water tank to create various aromas suited to different moods and settings. Additionally, it functions as a night light with seven color options, enhancing your sleep environment.The cool mist humidifier delivers a continuous mist output of 150ml per hour, ensuring a consistently moisturized atmosphere throughout the night