HUMIDITY CONTROLLER

摘要

PROBLEM TO BE SOLVED: To provide a humidity controller for semipermanently obtaining a humidity control effect without particularly requiring a running cost by simply turning over a reversible board. SOLUTION: In this humidity controller, a part of an outer shell for forming a housing space is formed of a reversible board 3 which can be reversed and is provided with a humidity control layer 2 on the obverse and reverse of a moisture cutoff layer 1.