Radon Action Month continues in Minnesota and across the nation, and homeowners in Redwood and Renville counties can now acquire free radon kits through the month of January. The Department of Health recommends that all homes get tested for radon gas, which is the only way to know if your home has elevated levels of the odorless, colorless and tasteless gas. Radon enter homes primarily through cracks and openings in basement or foundation floors and walls. One in three Minnesota homes have radon levels that pose a significant health risk after many years of exposure. It is the second leading cause of lung cancer in the United States, with more than 21,000 deaths attributed to radon gas each year. Free radon test kits can be obtained at the Public Health offices in Redwood Falls or Olivia. Many other local county public health offices also offer the kits for free or a reduced-price as well.