radon in basement 3

https://post-wiki.win/index.php/When_Your_Radon_Fan_Gives_Out:_A_Guide_to_Radon_Fan_Replacement

Radon in your basement might not be something you think about often, but it’s a real concern for many homeowners. This odorless, colorless gas can seep in through cracks in the foundation, and long-term exposure has been linked to serious health risks like lung cancer. Testing is straightforward and inexpensive, often using a simple kit you place in the lowest living area. If levels are high, professional mitigation can help reduce them, making your home safer for you and your family.