Louver window helps to circulate natural air, control light and temperature. Because of being delicately designed and used by advanced material and not taking space up of both interior and exterior, the product is used for portable partition, skylight, window, etc. Width opening of louver opening is twice wider than normal door to optimize air circulation process. With the fixed louver, we can open door when it rains lightly. The fixed louver is easy to clean from both its inside and outside and it limits occupational accidences when working with.