INDUSTRIAL USES

-Radon Seed Therapy: High amounts of radiation can kill cells, including cancer cells in the body with the problem of killing healthy tissue with cancerous tissue. This was refined to using a small tube where the doctor will focus the radon on a specific area. Thus still with the risk of secondary tumors to form.

-Radon Spas/Mines: A frequently used bath in European countries as a therapeutic treatment for froms of arthritis pains. For a less expensive solution, people would go to old mining caves where radon comes from.

-Glow in the Dark Paint: Where radium salts were mixed into paints to make them glow in the dark​ about a decade ago for clock dials. When there was a downside of dyng from radiation poisoning. The "Environmental Protection Agency" lists radon as  a health risk, so it is no longer used in consumer products in the public.