The New Milford Health Department is offering free radon test kits for home use. In partnership with the state Department of Public Health, the goal is for residents with elevated levels detected to take corrective action. Radon gas, which is odorless and invisible, is the leading cause of lung cancer in non-smokers. It occurs naturally and is found in rock, soil and water. It’s a low risk when outside, but can become a health hazard if it enters buildings. New Milford residents can make an appointment to get a free radon test kit by calling the town’s health department at 860-355-6035. A limited number of kits are available through the end of the month. A sanitarian from the department will help residents start the test and then collect it at the end.