Jim,
Many are increasingly concerned about elevated radiation levels in their own local areas, but without any way to check & test for local radiation contamination many of them are worrying needlessly, especially about minute, non-dangerous, increases over background radiation levels.
At KI4U we will for no charge test any submitted used air filters from SurvivalBlogger’s vehicles or homes. Here at the lab we are utilizing state of the art isotope identification spectrum analysis with dose rate determination and will e-mail lab analysis results back to any that send in their used air filters.
Full details on these tests can be found here [1]. Regards, – Shane at KI4U.com [1]