... 3.5g new blue ozone plate for air purifier used for household1.used in household air purifier, ,dryer,shoe cabinet, oxygen ... CE,ROHS Approved3.Life: more than 3000 hours 1.Usage:Used in household air purifier,air fresher, home air purifier, ... of using earth:This kind of ozone generator can be used in air and its life time can be up ... new 3.5g longlife blue ozone plate for air purifier used for household