sub-slab depressurization 10

https://getradonlevelsmissourispot.rivertonbrief.com/posts/understanding-radon-levels-missouri-homeowners-should-know

Sub-slab depressurization is a radon mitigation technique where a pipe system is installed beneath a concrete slab to draw soil gases away from the building. A fan creates negative pressure, venting the gases safely outside. This method is common in basements, preventing harmful radon accumulation by keeping the area under the slab depressurized.