basement radon prevention 3

https://thesubslabdepressurizationdeck.stonefielddigest.com/posts/why-sub-slab-depressurization-in-york-is-the-gold-standard-for-radon-mitigation

When you're finishing a basement, thinking about radon might not be top of mind, but it should be. Installing a passive vent pipe system under the concrete slab, connected to a radon sump, gives that radioactive gas a safe path outdoors before it ever seeps into your living space. Later, you can always add an active fan if testing shows levels are high, but laying the groundwork now is cheap and smart.