... Certification easy to operate lower power consumption healthcare products 1,Use highquality enamel casting tube, the oxygen purity, stability, ... 3,Modular with plugin design, easy maintenance, reliability; 4,Use Ozone-specific air pump, longer-lived and good stability; 5 ... to distinguish, more health; 9,Small space, water, gas dual-use, simple operation, can be standing or hanging, is more practical ...