... Modular with plug-in design, easy maintenance, reliablity;4,Use Ozone-specific air pump, longe-lived and good stability; 5,Origin ... the trachea, easy to distinguish, more health; 9,Small space, water, gas dual-use, simple operation, can be standing or hanging ... Features:1) Only put the meat, fruit vegetable into the ozone water mixture for 20minutes, can kills pesticide leftover, germs, bacteria, spore ...