The ultimate geek tool has arrived, say hello to my little friend-- the USB Air Refresher. Some of us "sensitive types" tend to be a little hypocondriatic. Especially if someone rolls off statistics like "adults breathe over 3,000 gallons of air a day" which includes polluted allergens, pollutants and odors. So gross! The tiny USB operated air purifier looks more like a speaker, and can be plugged into your laptop, pc and even your car. It doesn't hurt to treat your body to clean air whenever you can.