In judging a product’s success, what factor causes differing evaluations between homeowners and professionals?

Evaluating the product's performance versus evaluating the overall remediation effort including moisture management.

The divergence in perceived product effectiveness often stems from the scope of evaluation. Consumers, especially DIY users, frequently judge a product based on whether the mold returns within a certain timeframe post-application, potentially overlooking critical environmental factors. A professional or experienced contractor understands that the product is only one tool in the overall remediation effort. If a homeowner applies the spray perfectly but fails to fix a leaking pipe or resolve high attic humidity, the mold will inevitably return. Thus, professionals assess whether the product performed its intended function (killing surface spores) within the context of a successful, holistic remediation that included addressing the underlying moisture failure, leading to different conclusions about the product's inherent worth.