General description This portable mini humidifier is designed for convenience and versatility, making it ideal for travel, use in the bedroom, office, or car. With a compact size of 8 cm in diameter and 10.3 cm in height, it can easily fit into any space. Technical specifications Capacity: 220 ml Dimensions: Diameter 8 cm, Height 10.3 cm Power: USB powered (USB cable included, adapter not included) Usage Use only water for diffusion; do not use essential oils or other diffused materials. Best results with running water, tap water, or mineral water; do not use purified water. Two mist modes: Continuous spray mode and intermittent spray mode (sprays for 4 seconds, stops for 6 seconds). Modes will automatically stop after 3.5 hours of operation. Soft night light feature can be turned on or off by long pressing the button.