-portable USB car air purifier Mini fresh ballCover area: 300sqft CBM: 200/per ... Powers supplied, USB Carbon filter designPackage : 1pc/color box , with car smoke socket24pcs/ctn , ctn size : 57*43.5*39cmNOTEContact us ... Import & Export Co., Ltd. USB Air Cleaner,USB Air Purifier,Oxygen Bar, Air Freshener, Air Revitalisor