Overview Anti-Gravity Technology: Features reverse-flow water droplet design for unique visual effects and enhanced humidification. Silent Operation: Below 36dB noise level ensures quiet performance for home or office use. Dry-Burn Protection: Automatically shuts off when water is low to prevent damage and ensure safety. USB Powered: Flexible power source compatible with various devices like power banks and laptops. Large Spray Capacity: Covers 31-40 square meters with efficient mist output. Specifications Model: Y18 Material: Plastic (ABS) Power Supply: USB Rated Voltage: ?36V Rated Power: ?2W Noise Level: Below 36dB Water Tank Capacity: 0.5-1L Mist Outlets: 1 Operation: Mechanical Shape: Columnar Packing List Anti-gravity humidifier*1 USB cable*1