Portable USB Humidifier and Aromatherapy Diffuser Compact and portable: measures 4.8 x 4.8 x 1.3 cm; lightweight and spacesaving, ideal for office desks, small spaces, and travel. Aromatherapy function: doubles as an essential oil diffuser, allowing you to add your favorite scents for a refreshing atmosphere that may help reduce stress and improve mood; compatible with most liquid essential oils for a wellness experience. Easy button operation: onebutton control for immediate activation; fill the water tank via the opening and add your preferred essential drops to enjoy a continuous fine mist output. Quiet and USB powered: uses a quiet motor to minimize disruption during work or sleep; powered by USB so it can run from a laptop, power bank, or wall adapter for flexible placement in the bedroom, car, or home. Use scenarios: office desk or small workspace to improve comfort and focus; travel or hotel room for a compact humidifier and diffuser solution; bedroom or car cabin for quiet humidification and moodenhancing aromatherapy.