The dates and times of your kit’s exposure are used to calculate your radon levels. Radon decays over time, meaning that when we receive your radon sampler, there is less radon present than when you tested. The information you provide on your info sheet (including the dates and times) helps us correct for the difference between when you tested and when our lab receives your kit. This is necessary to calculate your test result and complete your report. Incorrect times and dates may lead to inaccurate results, so for best results, please ensure that the dates and times are as accurate as possible.