radon reduction guarantee 2

https://myradonmitigationcoststore.keystonescope.com/posts/what-you-need-to-know-about-radon-mitigation-cost

We guarantee our radon mitigation system will lower your home's radon levels to below the EPA action limit of 4 pCi/L, or we'll refund your installation costs. This ensures your family breathes safer air without the long-term health risks associated with radon exposure.