Radon is a naturally occurring radioactive gas, which can cause serious health problems in homes and buildings. It is present in soil and rocks, and can get inside homes and buildings. The good news is that lowering the levels in a home can help minimize the risks. Specifically, lowering radon levels is important for reducing your risk of developing lung cancer. How to Lower Radon Levels in Your Home Radon mitigation can be achieved with several methods. One of the most popular is the use of a sub-slab depressurization system. This radon mitigation technique involves the use of a PVC pipe and fan combination to draw radon gas from below the home's floor slab. In this way, the radon is effectively vented to the outdoors. A radon mitigation technician will perform a test that measures the amount of radon in the air. The tester will check the amount of radon by drawing smoke from the basement, as well as by examining the gauge of the radon mitigation system. This will allow you to see whether the system is effective in reducing radon. You should also check the performance of the system's indicator, usually a manometer. This manometer will measure the pressure and flow of the mitigation system. Another effective radon mitigation technique is sealing up the minor pathways that allow radon to enter your home. Minor cracks on foundation walls can be sealed, while larger cracks can be sealed using special techniques. Sealing around utility penetrations can also help reduce radon levels. A seal must be applied properly, however, to ensure maximum effectiveness.