Mini Portable USB Humidifiera Great Gift for Friends and Family The USB Portable Humidifier creates a soothing personal space at home, the office, in a car, or traveling To use, fill bottle or cup with purified water, place the humidifier into the opening, making sure the filter is submerged, & plug the humidifier into a USB port for instant comfort. To turn off, unplug it You can then refill the bottle & plug the humidifier into a USB port to turn it back on. Humidifier Relieves cold, cough, & flu symptoms, itchy dry skin, congested sinuses, chapped lips, dry eyes, & headaches by adding moisture to dry air Mister Cool off by using cold water. This environmentally-friendly humidifier helps reuse bottles & has a low power output of 3 watts. Convenient to use anytime, anywhere, this personal-use humidifier is small enough to fit into a purse, laptop bag, or suitcase & affects an area of 5 sq.ft. Included with the humidifier are 1 filters & a USB cable