| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method of removing contamination from an interior surface of an air-conditioned room capable of removing contamination adhering to the interior surface of the air-conditioned room simply without leaving blemishes.SOLUTION: A method of removing contamination adhering to an interior surface made of a decorative plaster board 30 around an air diffuser of an indoor unit 1. The method includes; a polishing step of polishing the interior surface to which the contamination adheres; and a spray step of spraying water to the polished interior surface in a state in which powder of the decorative plaster board 30 generated in the polishing step and adhering to the interior surface is left on the interior surface.</p> |
