radon retest after repair

https://myradonfannoisezone.clarionvale.com/posts/understanding-radon-fan-noise-causes-and-solutions-for-a-quieter-system

After fixing radon issues in your home, a follow-up test confirms whether the mitigation worked. This retest is crucial because radon levels can vary. It's a straightforward process—place a test kit in the lowest lived-in level, follow instructions, and send it to a lab. The results will tell you if you're breathing safely or need further adjustments.