Cleaning supplies are a collective term for liquids used for polishing floors and walls, and they do not include washing products for human body. They are mainly used with sponges, brushes and cloths when polishing wooden floors, bathrooms, rest rooms, kitchen and windows, etc. Detergents, synthetic detergents, bleaches, polishing compounds, etc., are used in different applications depending on how stubborn the dirt is. Additionally, cleaning supplies in different concentrations can be selected by using different properties such as neutral, mildly alkaline, alkaline, acid, etc. Commercial-use cleaning supplies are commonly used by pouring into washing devices such as floor polishers and scrubbers. Also, special caution needs to be taken for handling of commercial-use cleaning supplies; they often need to be diluted before use due to their high concentration, and their quality control may be difficult. Therefore, users need to select the suitable cleaning supply depending on the type of dirt to be removed, and they are required to have the knowledge on the ingredients.