radon system upgrade 2

https://myradonlevelsstlouisreview.keystonescope.com/posts/understanding-radon-levels-st-louis-what-homeowners-need-to-know

We finally upgraded our ancient radon mitigation system—the new setup automatically monitors levels and adjusts ventilation, so we don't have to manually check the basement every week. It's been running silently for a month now, and the readings are consistently lower. Huge relief, honestly.