How can the cleaning product's effectiveness be determined according to the document?

Determining the effectiveness of a cleaning product through comparative results from multiple stations is a robust method, as it allows for an objective assessment based on actual performance data. By comparing how the product works across different environments or surfaces, one can evaluate its consistency and reliability. This approach often involves conducting controlled tests where the same criteria are used to measure the cleaning outcomes, leading to data-driven conclusions about its efficacy.

In contrast, relying on aspects such as scent and color, manufacturer promises, or user testimonials leans more toward subjective assessments. While these factors can provide some insights or impressions about the product, they do not provide the rigorous and empirical evidence necessary for a definitive evaluation of cleaning effectiveness. Empirical data from consistent testing across various stations offers a clearer picture of how well the product performs under different circumstances, leading to more informed decisions about its use.