radon test retest 3

https://page-wiki.win/index.php/Why_Radon_Testing_York_Homeowners_Shouldn%27t_Skip_This_Step

After our initial radon test came back borderline, we did a retest during the winter heating season to see if levels changed once the house was sealed up tight. It was a simple process using a second short-term kit placed in the same basement location, and we sent it off the same day to the lab for consistent results.