Clean houses (for separating recyclable materials) can be manufactured by customizing the specification, shape, and color according to the installation environment and conditions. They provide a comfortable environment with smooth passage through simple movement lines, pictograms developed considering various age groups, and a structure that provides adequate ventilation without unnecessary decorative elements. In addition, with a CCTV camera installed, they can be applied for numerous purposes such as crime prevention, fire monitoring, and separate collection of recyclable items. It is also possible to introduce smart systems such as monitors and voice information transmission devices