Ace the MDRAO Challenge 2025 – Unleash Your Medical Device Mastery!

The main purpose of cleaning agents such as detergents and descalers is to assist in the removal of contaminants. These products are specifically formulated to break down and lift away soil, grease, and other unwanted materials from surfaces. For example, detergents contain surfactants that help reduce the surface tension of water, allowing it to spread and penetrate more easily into dirt and grime. This action facilitates the removal of these contaminants during the cleaning process.

Descalers, on the other hand, are designed to remove mineral deposits like limescale, which can build up on equipment and surfaces, especially in areas with hard water. They effectively dissolve these buildups, ensuring that the surfaces are clean and ready for further processing or use.

In contrast to the correct answer, adding fragrance to cleaning solutions does not serve the primary purpose of cleaning; instead, it addresses aesthetic preferences rather than efficacy. Degrading surfaces is also contrary to the intent of cleaning agents, as these products are meant to clean without causing damage to the surfaces they are applied to. Lastly, cleaning agents aim to leave minimal or no residues on cleaned items to ensure they are safe for use, especially in medical settings.