mini usb air purifier 1.remove odor in basement 2.ozone output:20mg/h 3. EXW price with factory mini usb air purifier with 20mg ozone 1.remove mode and odor in basement2.remove food odor,like,spices,brunt oil3.low noice and consumption4.ozone output:20mg Features:1. Can be used to destroy airborne odors caused by such things as wet carpet, basement mold and mildew, pet odor, pollen, smoke odor, ...