How long does it take to get rid of radon?

https://www.minds.com/seanyapj3k/blog/why-is-radon-mitigation-so-essential-1047515887157616640

Before you relocate to your new location it is important to have it tested for radon gas. Radon is an unsafe, radioactive gas that is proven to trigger lung cancer. You also can not see it, taste it, or smell it.