If a radon test detects levels above the EPA’s action threshold (4 pCi/L), a radon mitigation system is typically installed. The most common design is a sub-slab depressurization system. This method uses a combination of PVC vent piping and a radon fan to draw the gas from beneath the building’s foundation and discharge it safely above the roofline, away from windows or air intakes.

The principle is simple but effective: by creating negative pressure beneath the slab, radon is prevented from entering the living space. These fans are often located in basements, attics, or outdoors to minimize noise and provide continuous operation.

However, because the fan and piping are usually hidden from view, it can be difficult for homeowners or facility managers to know whether the system is operating properly. ///

Radiation exposure is non-cumulative beyond a 24 hour dose rate. "Radon mitigation" is just another grift, sanctioned by the government.

Rhetorical question: If radiation is so dangerous (i.e., causes cancer so readily), why do we use it cure cancer? Doesn't it cause more cancer?