The normal use of louver doors and windows should be kept dry and tidy, avoiding contact with a large amount of water. It is strictly prohibited to scratch or collide with hard objects such as sharp knives on the surface of the louver. In rainy days, please close the window to prevent water seepage. Daily cleaning of the louver should be done with a damp cloth containing 30% water. It is strictly prohibited to use harmful chemical cleaning agents to clean the surface of the louver doors and windows. Severe scratches and damage to the surface can be applied for repair at the factory, It can make your blinds and blinds the same as the new product.