FY-12 oxygen concentrator: 1. Produced by standardization. 2. Be convenient to maintain. 3. Use with ozone generator Oxygen ... -3,6,12,24,50,100,150,225,300,500.2. CFZY series (air source) ozone generator: CFZY-3,6,12 ... series tube mixer: CH-1,2,3,4,5......30..5. TH series mixing tower: TH-1,2,3,4,5....20...6. FYseries ...