48 hour radon test 3

https://getradontestingcompanycorner.opalvector.com/posts/what-to-look-for-in-a-radon-testing-company-for-your-st.-louis-home

Running a 48 hour radon test is a straightforward way to get a snapshot of radon levels in your home. You place a small detector in the lowest lived-in area, leave it undisturbed for two days, then mail it to a lab for analysis. The results help you decide if you need to mitigate this odorless gas.