... 3.Circle working 4.Dry battery supply fridgerator air purification,air cleaners,air filters,kitchen appliance1. Mini Intelligent Ozone disinfector usage ... shoes cabinets etc.2. Product Technic:Intlligent timer, ozone sterilize, battery supply.3. Package infomation:Pd Weight: 305g Pd ... Indicator flash one time every ten seconds. fridgerator air purification,air cleaners,air filters,kitchen appliance