Using high frequency electric knife, super pulse CO2 laser scanning surgical scar or Nd: YAG laser cutting, and surgical skin burning, gasification, carbonization surgery, such as water, can produce a lot of CO2 / CO, HN3 / HCN/H2S, HPV, HIV and other harmful, toxic, smelly smoke, fog, oil, impurity particles, and carry on the multiple absorption and filtering effectively eliminate the operation of smoke produced when harmful, to purify environment air, reduce harmful to health care workers and patients smoke damage. (Editor：admin)