1.used in household air purifier, ,dryer,shoe cabinet, oxygen ... using life time 1.Usage:Used in household air purifier,air fresher, home air purifier,Dryer,dishwasher,shoe cabinet, household ... ozone transformer60mm*30mm*34mmO3 concentration50mg/hour(under air circumstance)Power10WFrequencyInput:50/60HZ,Output:16KHZInputDC:24VOutput3 ... kind of ozone generator can be used in air and its life time can be up ...