| 摘要 |
PROBLEM TO BE SOLVED: To provide a function of preventing and reducing dew condensation to the window surface in winter without requiring a storage space in another place separately and labor for installation thereby achieving energy conservation by thermal insulation at the window. SOLUTION: This is a panel door installed along the window frame and is equipped with a frame body 3 retaining a mesh body 2 and a panel body 4 which is attached in a freely detachable manner, freely slidable manner or freely openable manner in almost parallel to the mesh surface of the mesh body and covering the mesh surface. The panel door is also equipped with a panel door guide members 15 and 16 attached along the window frame and the panel door attached in a freely slidable manner to the panel door guide member.
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