1.Black curtains: can easily create negative emotions and make people feel suppressed.

2.Red curtains: can cause visual fatigue and lead to heightened emotions, irritability, etc.

3.Curtains with complex patterns: may contain fading and dyeing agents that, when exposed to sunlight over a long period of time, can release harmful substances.

4.Light-colored cotton and linen curtains: have poor shading performance and are prone to deformation. After washing once or several times, they may shrink.

5.Pure white curtains: are not very stain-resistant, and their shading effect is greatly reduced.