PROBLEM TO BE SOLVED: To provide a sterilizer that solves problems, exhibits a shielding function usable as a partition, and, at the same time, has a sufficient antiseptic capability.SOLUTION: The panel type sterilizer 1 comprises: a housing 2 having an internal space 22, a first opening 3 and a second opening 4 a suction fan 5 provided at, at least one of the first and second openings 3 and 4 an exhaust fan 6 provided at the other an air circulation path A located between the first and second openings 3 and 4, in the internal space 22 and one or more ultraviolet ray emission parts 7 provided in the internal space 22 and configured to emit an ultraviolet ray of a predetermined frequency zone to air circulating in the circulation path A, the ultraviolet ray emission part 7 being arranged so as to provide a communicating portion in the circulation path.
