| 摘要 |
A screen is provided to purify harmful material generated in a concrete building by using a screen film. A screen includes a screen film(210) formed by a wounding unit(230) including a wounding roller and a screen rode(220). The screen rode(220) includes a weighting member in such a manner that the screen film(210) maintains a spread state. A light catalyst coating layer is formed on the surface of the screen film(210). The light catalyst coating layer includes light catalyst including TiO2. A convection current flow heating hole(110) receives power and is operated in such a manner that convection current flow is manually achieved on the front surface of the screen film(210). The power unit for the operation of the heater includes wiring. The power includes a solar battery. |
