HUMIDITY CONDITIONING PLATE

PROBLEM TO BE SOLVED: To provide a humidity conditioning plate that can sufficiently cope with a sudden increase and decrease in humidity at a low cost. SOLUTION: This humidity conditioning plate comprises a core part without a humidity conditioning agent disposed in a core material of the plate, and front and rear face parts with the humidity conditioning agent disposed. In this constitution, a humidity conditioning function on the front and rear face side of the plate is higher than the humidity conditioning function of the core material. As an embodiment, the plate consists of front and rear face members 3 containing the humidity conditioning agents 1, and the core member 4 not containing the humidity conditioning agent. The core member is formed of an inorganic or organic material such as gypsum, calcium silicate, plastic or honeycomb paper. COPYRIGHT: (C)2004,JPO