Abstract: The present invention provides a sterilizer which includes a steam chamber comprising a steam chamber upper member and a steam chamber lower member which are bolt-coupled to each other; an inlet door configured to open or close an inlet of the steam chamber; and an outlet door configured to open or close an outlet of the steam chamber, wherein each of the steam chamber upper member and the steam chamber lower member comprises a housing defining a steam chamber inner space and a plurality of reinforcement ribs formed on a surface of the housing at a predetermined height.

Abstract: The present invention provides a sterilizer which includes a steam chamber comprising a steam chamber upper member and a steam chamber lower member which are bolt-coupled to each other; an inlet door configured to open or close an inlet of the steam chamber; and an outlet door configured to open or close an outlet of the steam chamber, wherein each of the steam chamber upper member and the steam chamber lower member comprises a housing defining a steam chamber inner space and a plurality of reinforcement ribs formed on a surface of the housing at a predetermined height.