TOPEPOP Portable Essential Oil Diffuser Mini Humidifier Purifier Cool Mist USB Air Humidifier Ultrasonic Mute Humidifier Diffuser Air Purifier Mist Maker for Home Office Car Bedroom Living Room EASY OPERATION: USB-powered, connect with your computer or usb charge plug to use. one click and it will come out of cool mist immediately. Add a few drops of favorite essential oils lavendar to enjoy wonderful aromas at home or on travel. Easy TO FILL AND CLEAN: gentle ultrasonic operation and low power consumption is perfect for use in office, spa, yoga studio, kitchen or bedroom. Compact size, lovely outlook will be a nice decoration on the desk, windows and so on. It will be easy clean with a smooth shell. GREAT HUMIDIFYING FUNTION: humidify your living space to prevent dry in air-conditioned room and chapped skin in dry winter months. Increase air humidity,clean air, smoke and dust. No filter humidify and fresh the air to help you relax and relieve stress, and fight allergy, cold or flu symptoms. MINI SIZE, EASY TO CARRY: Compact and lightweight, It can lift the mood and relieve stress from stressful and tired day, perfect for masking stubborn smoking and pet odors, get great and peaceful nights' sleep. Perfect for travel use. USB POWER: A great gift idea for personal or lover, kids, baby, families and friends who love aromatherapy or can benefit from scented oil diffusers. Very nice size so it doesn't need much room at all.