Portable Small Humidifier - Cool Mist Humidifier with Water Shortage Protection and Warm Night Light Compact Design: This portable humidifier features a stylish cylindrical design, perfect for small spaces like bedrooms, offices, and cars. This portable USB humidifier is incredibly easy to operate. Simply press a button to control all functions and set the mist level. Dual Nozzles: This mini humidifier has two modes. The dual nozzle design allows for a wide mist spray, effectively moistening the surrounding area. The first time you press the button, it will spray continuously from both nozzles. Pressing the button again will alternate spraying (3 seconds each), and a third short press will turn the spray off. Warm Night Light Mode: Long-press the power button to turn the night light on and off, creating a soft, warm glow that creates a comfortable atmosphere. The night light mode can be used alone or in conjunction with the humidifier's mist mode. The operating indicator light is always on. It features a low-brightness night light and a real-time operating status function (cannot be turned off). Water Level Protection: The built-in water level sensor automatically shuts off the device when the water level is low to prevent damage. The device is also tightly sealed, eliminating the worry of accidental spills.