ERIOTPY Cowboy Cap USB Mini Portable Water Bottle Cap Mist Autumn Winter Home Office Vehicles Air Humidifier 5 feet cable Humidifier Air Diffuser Mist Maker Fresh Air for home office or Car (Brown) Easy to Use: just place the humidifier into a bottle or cup of purified water (NOT hot water, and make sure the filter is submerged and soaked), plug, press button and enjoy Can be powered by any USB output device, such as PC/laptop, wall charger, USB socket and power. Essential Oil Diffuser Aromatherapy Mist Maker. Powerful-Creates a soothing personal space at home, the office, in a car, or traveling Healthful-Provides relief all year long.Relieves cold, cough and flu symptoms, itchy dry skin, congested sinuses, chapped lips, dry eyes, & headaches by adding moisture to dry air. Safe-This environmentally-friendly humidifier helps reuse bottles and has a low power output of 5 watts.