The inside of the incinerators including walls, ceilings and ground shall then be cleaned with a HEPA vacuum cleaner and followed by wet wiping.

• 清除残馀灰烬后的焚化炉内部包括焚化炉房墙壁、地面和天花表面，须以备有高效能空气粒子过滤器的吸尘机除污，并加以湿拭。