The application of coated purification board on hospital walls has multiple advantages. First, it has a smooth surface and is easy to clean. It can effectively prevent the growth of bacteria and viruses and meet the hospital’s requirements for a high cleanliness environment. Secondly, the coated purification board has good moisture and corrosion resistance, which is suitable for environments such as hospitals with high humidity and chemicals, extending the service life of the wall. In addition, it also has strong wear resistance and impact resistance, and can withstand frequent daily cleaning and disinfection operations, keeping the wall beautiful and tidy for a long time. Finally, the coated purification board is easy to install, which can reduce construction time and improve construction efficiency.