USB Apple Air Purifier activated carbon filter, high concentration negative ion, plus strong turbo fan setting into one compact and innovative unit, which contributes to decompose or exterminate various contamination including dust, particulate, bacterial, virus, VOC(volatile organic compound), smoke, microorganism etc. Its high concentration negative ion will help to exterminate static caused by computer, which can be generally used in office, lab, computer room, bedroom etc. You may drop essential oil or perfume to cotton piece included to create a romantic sweet-scented environment (essential oil and perfume haven't been included).