radon reduction system 3

https://myradonmitigationcostplace.northcrestbrief.com/posts/understanding-radon-mitigation-cost-for-your-home

When installing a radon reduction system, a contractor typically seals cracks in the foundation and extends a vent pipe from the soil below the slab up through the roof, with a small fan drawing radon gas from beneath the house before it can enter your living space.