It's OK if you're not an expert on radon - that's what our radon mitigation company is here for. But it is important to understand the threat it can pose to your family or customers. Here are some key things to know about radon: It's a highly dangerous gas that can go undetected since it's colorless and odorless It can seep into buildings of all kinds, including homes, schools and offices It can lead to lung cancer and other illnesses after periods of long exposure.