... surgery,microprocessor controlled,LED display easy to operate... Surgical Smoke Evacuator (XY-302),Vertical .Performance description:When carrying out ... pathological changed tissue, will produce many smoke,odor, particulates .such as steam, CO2,CO, HN3,HCN,H2S,viruses and other ... harmful, toxic, awful, smelly oil, fog and smoke, etc.This Smoke evacuator is ...