Objective To observe the effect of air disinfection by a kind of air disinfection slice to the indoor air in the hospital. Methods Plate sampling and bacterial culture method were used to detect the disinfection effect of the indoor air by heating & fumigating the air disinfection slice,and compared with the ultraviolet irradiation. Results The effective components of the air disinfection slice are essential oil of Schizonepeta and other Chinese herb. Each piece is 290 mg. Put 2 pieces in a 20m2room and hea...