Objective Compare the operating room effects of three disinfecting methods (formaldehyde fumigation, 3 oxygen disinfector machine and air cleaning disinfector).

Objective Two types of skin sterilization method used in 120 patients who were retaining central vein cannulas were compared,to find a sterilization method which can decrease the infection rate of central vein cannulation.

Select the Disinfection in the Light of Local Conditions;

Study on the effects of air disinfection by three methods;

To study the effects of air disinfection by four methods in cosmetic workshop,air was disinfected by ultraviolet rays irradiation, 40% formaldehyde fume , pentadialdchyde solution atomize and ozone gas generator, then efficiency of disinfection was evaluated by the petridish method after disinfected.

Clinical study on the improvement of skin preservation of scalp and means of sterilization in women patients with operation on cranium and brain;

Objective: To probe into quick and effective method of sterilization of perineum for prenatal parturient.

Objective To probe into sterilization method and the relation between to sterilization of venous indwelling trocar and phlebitis.

Study on Disinfection Methods for the Air and Objectes in SPF Barrier;