The Mino Ultrasonic Cool Mist USB Diffuser is the perfect diffuser for home or on the go. The sleek Mino fits on your desk or in your car's cupholder. The soft blue light and spill-proof design limit distractions so you can focus on you and your self-care. The Mino has a 2-hour high mist/ a 5-hour low mist run time. The automatic shut-off detects when the water tank is empty to ensure safe and worry-free diffusing. To use, add fresh water and your favorite essential oil to the water tank. Plug into a power source and let the cool mist refresh and recharge you.