Specialised radon testing is the only way to detect radon gas. Since radon is colourless, odourless, and tasteless, the only way to be sure of radon levels within a property is to use a radon test kit. Each kit contains passive radon detectors, which are small, silent and unintrusive.
The decay of radon forms other radioactive particles, which enter our lungs if inhaled. Inside the lungs, these elements continue to decay and emit radiation, most importantly alpha particles. When the lungs absorb alpha particles, they cause localised damage. This damage can subsequently lead to lung cancer. The radon level in the air we breathe outside is very low however it can be much higher inside buildings.