There are a series of multifunctional near-infrared shielding-photocatalytic nano films. And the study thermal insulating film of nano cesium tungsten bronze is the most popular one in these NIR shielding materials as it is a new type of environmentally friendly functional material with the highest NIR shielding performance.
More details, please visit:
http://cesium-tungsten-bronze.com/index.html
Cesium tungsten bronze plays an important part in shielding most of NIR light and holding high visible light transparency in these smart films. Also, such a film acts as a barrier to shield harmful ultraviolet light. In addition, it is anti-glare to shield the light pollution so that a quiet and suitable reading atmosphere can be created. So, if the outer wall of your study room has been replaced by a transparent glass design, it would be better for you to choose such a study thermal insulating film. And you will feel cool in the hot summer and feel warm in the cold winter.