MDRAO Practice Exam 2025 – Complete Exam Prep Resource

The factor that does not affect cleaning effectiveness is the cleaning agent's price. While the price of a cleaning agent may influence purchasing decisions or budget constraints, it does not have a direct impact on the efficacy of the cleaning process itself. Effective cleaning is determined by the composition and concentration of the cleaning agent, the method used, and environmental factors such as water hardness.

In contrast, the hardness of the water can affect how well the cleaning agent performs, as hard water may lead to the formation of insoluble compounds that can hinder cleaning effectiveness. Similarly, the method of cleaning, whether it is manual or automated, plays a critical role in how thoroughly surfaces can be cleaned. Additionally, the composition of the surface being cleaned is essential, as different materials may require specific cleaning agents or techniques for optimal results. Therefore, while considerations such as the effectiveness and suitability of cleaning agents are crucial, their cost does not impact their cleaning capabilities.