37 Sterilization, bacteria and virus killing and disinfection of medical apparatus and instruments; Sterilization, bacteria and virus killing and disinfection treatments to create clean rooms by killing airborne bacteria, adhesive bacteria and virus in the buildings of food factories, food warehouses, medicine factories, drug warehouses, hospitals, laboratories, cell culture and processing facilities, laboratory animal breeding facilities, etc.; Sterilization, bacteria and virus killing and disinfection of hospital facilities; Sterilization, bacteria and virus killing and disinfection of buildings, constructions and architecture; Sterilization, bacteria and virus killing and disinfection of the inside of buildings; Providing advice and information on sterilization, bacteria and virus killing and disinfection of medical apparatus and instruments; Providing advice and information on sterilization, bacteria and virus killing and disinfection treatments to create clean rooms by killing airborne bacteria, adhesive bacteria and virus in the buildings of food factories, food warehouses, medicine factories, drug warehouses, hospitals, laboratories, cell culture and processing facilities, laboratory animal breeding facilities, etc.; Providing advice and information on sterilization, bacteria and virus killing and disinfection of hospital facilities; Providing advice and information on sterilization, bacteria and virus killing and disinfection of buildings, constructions and architecture; Providing advice and information on sterilization, bacteria and virus killing and disinfection of the inside of buildings