What is a key recommendation regarding the mitigation of a home based on testing results?

Mitigation recommendations are based on reliable and consistent data concerning radon levels in a home. Relying solely on results from one test is not advisable because radon levels can fluctuate significantly based on various factors such as temperature, humidity, and house ventilation. A single test may not represent the average radon concentration over time, leading to potentially misguided decisions regarding mitigation.

Conducting multiple tests helps to confirm whether radon levels are consistently high and warrants mitigation measures. The variability in radon testing results makes it critical to ensure that mitigation decisions are based on thorough and reliable data. Therefore, making a decision based on just one test may not accurately reflect the home's radon risk, highlighting the need for a more comprehensive testing approach.