... voltage module, resistant to moisture, earthquake, maintenance-free; 03.Modular with plug-in design, easy maintenance, reliability; 04.Use Ozone ... , longe-lived and good stability; 05.Origin ABS engineering plastic, high hardness; 06.3C certification standard power cord; 07 ... purifier product quality varies greatly.our cetification:Functions:1) ABS plastic is eco-friendly & ozone compatible.2) You can ...