sub-slab depressurization 3

https://myradonbasementreview.readspirex.com/posts/understanding-radon-in-basement-what-metro-east-homeowners-should-know

Sub-slab depressurization is a key technique for keeping radon gas from seeping through concrete floors into basements. A small fan creates negative pressure below the slab, drawing soil gases away before they can enter the living space. The system uses a vent pipe to safely discharge the contaminated air outdoors, often connecting to existing plumbing vents. It's a practical solution for homeowners dealing with elevated radon levels, typically installed by professionals during new construction…