Portable, will not take too much space in office, a little bigger than your palm, help you relax in working time. Although it is small but can contain 200mL water, continuously work in 9 hours, intermittently work in more than 15 hours. Healthy material, water container is made by ceramic, top flower made by other material but looks like ceramic, best gift with cute packing box. Diffusers with new ultrasonic technology can breaks water and essential oils into extremely fine micro-particles without heat, and also release much oxygen ions into the air around you.Balance Humidityit is always very dry in winter, oil diffuser humidifier can effective increase humidity in room, prevent you from dry cough, sinus irritation and dry skin. What's more, higher humidity will also protect leather item in your house.Sweet Smelladd several drops essential oils into water, the oil will also become micro-particles then release into air slowly, then your rooms will smell good, have a happy holiday, relaxed job time and better sleeping.More: you will find more benefits from an essential oil diffuser. Note1. The flower part is made by PP but looks like ceramic.2. USB powered so we do not provide adapter, you can use your cellphone adapter or plug it into computer ports.3. We recommend you to use essential oils which will be mixed with water faster, and regularly clean the top mist outlet can let the humidifier work better.